While the concept of getting off to someone without their consent is immoral on the surface, it is something that can’t be helped in regard to the internet. Most Youtubers, Twitch Streamers, and Tik Tokers have the shared goal of growing their channels in popularity(receiving more likes, follows, subs, and overall attention). They would have to understand that as they grow more popular there’s a chance that some people are bound to find them attractive and perhaps pleasure themselves based on the way they look, dress, or something they’ve done/do. Let’s be honest, this forum is primarily made up of free(non consensual) content and always has. It would cease to exist without it. Our fetish is far tamer than most to begin with.
It’s isn’t based on having to see nudity or overtly sexual behavior/activity. It’s a common bodily function. Now as far as harrassing and creeping people out i’m completely against that. This fetish is so easy to have that it really makes no sense to beg for it(which is why I don’t agree with OP’s take of there being lack of content). We could be riding public transport and witness a lady a few seats down fail to muffle a burp after sipping coffee. We could be sitting on our front porch and and the mail lady could burp right in front of us while delivering our mail. Its so simple and convenient to have. No ass, breasts, feet, lingerie, etc needed. It’s a very innocent fetish at the end of the day despite the sexual aspect our minds have put onto this otherwise normal action.
Now I will say this, sharing vids from a personal account on sites like Facebook or Instagram where the person only follows and interacts with people they know should be completey off limits(even if their name isn’t shared their face is still involved). Cause they aren’t trying to become famous. I’m only refering to accounts where the ideal goal is for popularity growth. And even then keeping names secret is heavily suggested to keep their audience clean of burp beggars. Overall as long as harrasment precautions are taken I think its okay to share burp clips from random people(as long as its not from a personal account where they only interact with friends and family).
Edit: If this were a more lude fetish(such as one involving body parts) I would agree a lot more with your take though. At the end of the day anything can be made sexual though. So there’s more than likely people getting off to even more simple things than burps such as the way a person walks or talks.