Have e-bikes adversely affected your access to local trails?

 Sorry, this was a reply to @MrNibbles. I clicked in the wrong place.

 Can you provide some backup for the causation you seem to imply? Not questioning your honesty, but unless there is backup that clearly connects the closure to the presence of E-Bikes, it's not the example I seek. Thank you in advance.

 Regarding the Turtle Ridge trail: I wasn't the person who decided to close the trail so I can only infer what was going through the heads of those who did. Since the trail was closed to all bikes, someone apparently wanted to close it to all bikes - I wouldn't be surprised if that person couldn't tell an ebike from a non-ebike. I worked with (and full disclosure, I have sponsored) the local IMBA chapter (sharemtb.com) which helped construct the trail, I alerted them upon noticing that the closure signs were erected, and heard of the negotiation to reopen of it. As I recall they were closing the trail to ebikes (I believe it is still closed to ebikes) and non-ebikes got opportunistically (or perhaps accidentally) added to the closure. I don't know if there's recorded testimony to back this up, but if you want to investigate this further, shoot me a PM and I'll put you in touch with the folks involved (they're volunteers who would rather be building trails, so please be respectful of their time).

Regarding the OC Parks situation: You can learn more here ocparks.com/about-us/projects/trails_pilot_project. I guess if you contact OC Parks they'll have surveys you can review which might have the information you seek. I've not been following it closely but I'd bet the same IMBA chapter guys mentioned in the first example have likely been involved in that too.

 @DirtBagTim: Appreciate the info. I did find a forum that went back to 2018 with a very long discussion on the topic. From that anecdotal evidence it seems the reason for the closure was the creation of pirate trails, which is probably the very worst thing any biker can do (and likely not the work of E-Bikers). I found the City of Irvine dept to contact and will do so next week. Hopefully that will shed some official light on what actually happened. However it is true that E-Bikes have always been banned from those trails (not just recently), but there were some blatant instances of them ignoring that ban and even publicly bragging about it on social media. With my experience over the decades, I will say that cutting unsanctioned trails is the number one way to get biking banned, and it's almost certainly the work of locals, since visitors aren't going to expend that kind of effort.

 @MrNibbles, you said “not questioning your honesty”, and then in the same sentence questioned my honesty by implying that I wouldn’t be trusted without citing my sources. I attempted this by telling of my experience, and now you refute that because of forum anecdotes from 2018? I contacted the local IMBA guys in 2014 to notify them of the Turtle Ridge trail closure, so these may be unrelated events. I’ve simply told of my experience, on my local trails, because you asked.
You then shifted focus to other possible reasons for trail closure such as pirate trails. Though I have mentioned already that ebikes might only be a contributing factor, I’m certain that the 2014 Turtle Ridge closure was not related to pirate trails, there really wouldn’t be much of a place for them to go in that area. Pirate trails do show up locally on occasion, I’ve seen them addressed with signage and blockage of the unauthorized trails rather than by closure of adjacent sanctioned trails.
Next, you’re going to call Irvine, CA parks dept, from New Jersey no less, to “shed official light on what actually happened”? I’d be surprised if they have memory of this and entertained to learn if they have a file for “complaints about ebikes, which are irrefutably unrelated to other factors”. You didn’t straight up question my honesty this time, or flat out call me a liar, but perhaps you can appreciate that it feels like you’re somewhere in that zone.
I didn't get that PM I invited you to send to connect you with my local IMBA guys, who would probably put you in touch with the right guys in city hall. Frankly, I now feel that I’d be wasting their time by connecting you. I feel that perhaps you don’t want to see examples of trail closure at all, that instead you’d like to see evidence of absence of evidence. You did ask “…why is it so hard to get actual examples?”. It could be related to fear of receiving a cyber-inquisition like this if an example is provided.
I don’t have an ebike, but I have ridden them and enjoyed it, and I rode with friends this week who were on theirs – they towed a trailer of beer and everyone had a best-day-ever!
Finally, please accept my apologies, you were clear that you would love to see just one actual example of a trail closure. I inferred that seeing two examples would bring you twice the love, I’m not sure that worked out as I hoped.
I now notice that your account was created only yesterday, you got me! Anyway, I feel it is best at this point in the conversation that we go our separate ways and see other people. Happy trails.

 @DirtBagTim: wow, and here I thought we were having a reasonable exchange. I’m sorry the story you are telling yourself has overcome your ability to engage in rational discourse. I’ll bow out now, though I’m definitely going to give them a call since I have no reason to dissemble.

 It’s truly the “chicken little” argument. People will say trails are getting closed, but when pressed for a specific example, you get crickets - or fabrication/bending of facts to support their claim.

 @dunbarplace: It would be great is @steb-stott or someone at Pinkbike did a followup investigative piece on the subject. Put one of the myths to bed, either by verification, or debunking.

 @dunbarplace: It seems I elicited the exact response you predicted. Sometimes I am dumbfounded by how bizarre people can be.