Welcome to chan culture. These sites often host childish edgelords who think shouting slurs is the funniest thing since Pickle Rick. There is a reason that "don't feed the trolls" is a core Internet axiom. The fact that transfolk and their "allies" are often some of the most fragile folks around makes it easy to troll them. Of course, some trolls are giving their sincere opinions--but disregard them all the same.