RfC: deprecate hashtag-only changeset comments

[Minh_Nguyen (Minh Nguyễn)]

@Matija_Nalis

And is:
"#hotosm-project-15476 #moroccoearthquake2023 #OPSGIS2023"
so much worse then:
"HOTOSM project 15476 mapping Morocco earthquake in 2023 #OPSGIS2023"?

I sense a hashtag-reformatting browser extension coming our way…