I've been a member on a website that's quite well known in my country for over 15 years. It's like adult Facebook where people post nudes and it's all free.
Recently however people have more and more started using it for advertising their OF and what I find funny/interesting is how I can tell most of these profiles simply by looking at their pictures as they always have this certain "onlyfans look" to them.
I've never used OF myself but the feeling I get from these profiles is that it's way too obvious that they're doing it for the money. There's a completely different vibe to someone's profile who just wants to show off because it's exciting to them.
It's a reference to a specific Internet connected adult toy called a lush3. Cam Girls and only fans people connect them to their chats so the fans can control how much it vibrates. Since it's Wi-Fi connected it has a tail that sticks out to improve the connection.
To add to that, most of the time cam girls don't even turn the thing on, and do an incredibly over exaggerated reaction to the sound the chat makes when someone gives a tip, and videos of this get posted unironically to any nsfw forum/board/sub/community, as if it is high quality enjoyable content.