I mean, there was a video contest around January/February 2019. You could find the last remaining videos of that and see avatars in them (though the chances of someone actually having the Bopirite Cranberry is pretty low.)
Also, here's a few additional details I forgot to add:
On April 1st 2019, Isaiah made a forum post titled "I [gender]ually identify as a racecar" and the body was some copypasta. Anyone who changed their avatar that day had their body parts arranged to look kinda like a human racecar.
Around June 2019, FireCatMagic(I think) made the first Bopimo! game, which was a test game. We couldn't play it. That was the only game made on the old Bopimo!. (I think you've already seen the gameplay of it though)

thx gang the vid will take a week to finish or more