There was discussion on trying to have tone indicators used more often on Hexbear to make the space more ND inclusive. This is a slick looking set of tone indicator emojis that could be integrated relatively easily. Having tone indicators as emojis might make then more convenient for users and would also make them stand out much more clearly in a post.
Here is the list in this set: /gen (genuine) /hj (half joking) /ij (inside joke) /j (joking) /lit (literal) /- (negative) /+ (positive) /ref (reference) /rh (rhetorical) /s (sarcastic) /srs (serious) /? (what tone is this)
Absolutely. /hj was either came up by an NT who fundamentally doesn't understand why autistic people want tone markers or someone who wants an "I'm joking unless you agree with me in which case I'm being serious" tone marker. The whole point of tone markers is to remove ambiguity. To someone who can't read tone in text, every statement functionally has an /hj attached to the end.