Well the jannies are asleep, so if any janny sees this don't approve my earlier message since it was a whole bunch of nothing or whatever. Anyways, self inserting is not bad, not in the slightest. If you look at old 4chan /qa/ posts, you will see that self inserting was common in those times as well. Also, we can't really consider it "self inserting as a symbol of mockery" when some soyjaks look like this:
https://soybooru.com/post/view/6174. Not to mention "self inserting" in itself is a dumb term. When a weeb uses a tranime image, they aren't self inserting, they're just using a reaction image to convey how they feel. But when you use a neutralplier, you're apparently self inserting as the heckin' soy boy woah jaque.
TL;DR Self inserting is good and isn't even really self inserting