I doubt that. The meaning of # in C does my resemble hashtags at all. I would guess it was inspired by IRC, the first popular chat system, dating back to the 7

I doubt that. The meaning of # in C does my resemble hashtags at all. I would guess it was inspired by IRC, the first popular chat system, dating back to the 70s or 80s, which uses channels named with the hashmark and which are often named after the conversation topic