inline hashtags were not devised by platforms, but by users; platforms only caught up afterwards.
https://factoryjoe.com/2007/10/22/twitter-hashtags-for-emergency-coordination-and-disaster-relief/
i love tumblr tags aesthetically too but i don't really want my poor instance's db to have to index all posts by all the bits of rambling metacommentary that people only put in the tags so they wouldn't propagate on reblogs
(https://botsin.space/@kottke/110180169283137256 and https://www.theverge.com/23673125/mastodon-separate-tags-hashtag-navigation-accessibility )
