BUR #40780 has been rejected.
create implication speech_stab -> speech_bubble
create implication spoken_anger_vein -> speech_bubble
create implication spoken_blush -> speech_bubble
create implication spoken_ellipsis -> speech_bubble
create implication spoken_exclamation_mark -> speech_bubble
create implication spoken_food -> speech_bubble
create implication spoken_heart -> speech_bubble
create implication spoken_interrobang -> speech_bubble
create implication spoken_musical_note -> speech_bubble
create implication spoken_question_mark -> speech_bubble
create implication spoken_squiggle -> speech_bubble
create implication spoken_sweatdrop -> speech_bubble
A large set of implications which will undoubtedly add speech bubbles where they shouldn't be, I justify this with the overwhelming amount of posts with untagged speech bubbles that date back (almost) 20 years.
I've read this thread and the speech_bubble tag will be heavily inflated but it's a lot more accurate than what we have now and it'll be useful to have all of this in one spot where it can just be made into a tag group or when it's gardened.