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.
A⇒B ⊬ ¬A⇒¬B
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.
That's a possibility. I would be concerned that the false positive rate is so high compared to the rate of actual CSAM that the FBI would just block anyone using this for reporting as spam.
What might be done is to track the detection rate of users. If anyone is significantly higher than the average they might be uploading CSAM. Only issue I see with this is the detector doesn't have an equal false positive rate across all content. It could be that the user just uploads pictures of their kids playing at the park a lot.
A 1% false positive rate is probably going to be to high to reliability report every positive to the FBI. The rate of actual CSAM is likely to be much lower than this. If it's 1 in 10,000 uploads, you will have 100 false positives and 1 true positive.
I have the urge to edit it to have a laser beam now.