It's a meme on the philosophy of what gender is. Being supportive of other people choices is nice but isn't really relevant to the meme.
How are you tracking them to other sites? There's not really anything that links a user account to an actual person in the data that gets federated.
It's an uncountable noun. You are asking a question roughly akin to "How many airs are there?" There's not an answer because it does not have the quality of countability.
It's from a meme about an IKEA stuffed shark that gained traction within the trans community. It's actually what the instance, blahaj, this community is hosted on is named after.
I tracked the source image back to here. I'm guessing either she made some stickers for herself or someone else did a one off printing for themselves. I can't find them for sale anywhere.
@BiNonBi
@lemmy.blahaj.zone