>>276418904
>New players joining through the thread are likely to be kicked as randos and laughed about later.
You say "likely", how often does "likely" imply? 50% of the time? 20, 90? Because I've seen it happen literally never, but maybe that's just my timezones. And to what percentage does it change if the person also states that he's from the thread? 
Instead of taking a defeatist stance of "oh woe, anons will mistakenly be kicked, time to give up", how about doing something against it instead? Because I'm pretty sure telling newfriends that want to join to say the magic words of "hi, I'm new and from the thread" and anons already there to be aware of that phrase would drastically reduce that thing that based on my experience isn't even happening anyways.
It doesn't even have to be an intrusive or resource-intensive measure, we could just make a Newfag's Kit For Joining The Meetup™ copypasta image and boom, problem solved.

>If they clear up the misunderstanding later, they'll get some attention until people get to know them, at which point they'll recede into obscurity and be ignored.
It seems that your problem has more to do with basic human psychology, which always demands new thrills and will eventually get accustomed to regular experiences. This is an unsolvable problem, and other communities neither have nor can solve it either.

>If they're anything other than a heterosexual male they'll get some combination of open ridicule from most and creepy sexual attention
As if 4chan has ever been particularly kind to women or whatever else you may have in mind. Then again, at the same time we actually at least have some well-liked and long-standing women in the group, albeit admittedly few and probably less than the average VRC community.

>If they make friends elsewhere and those friends join them in the meetup, they'll be kicked as randos and then the person they joined on will be ridiculed.
One of my rando friends yesterday was there for 3h and wasn't kicked.