I'm curious -and apparently somewhat confused- about hashtag usage. Take this message for example.
If I reply to it (email or online), the subject gets prepopulated with Re: Help/insights on hashtags on message subjects #hashtaghelp #hashtagusage
Fine, I go ahead and send my reply. I get an email with that subject in my email, complete with both hashtags.
Say I reply again, only this time I remove one of the hashtags, let's say #hashtaghelp, I now get the email without it, i.e. Re: Help/insights on hashtags on message subjects #hashtagusage
If I reply to this one, it doesn't include both hashtags as the original topic does. I can then if I wanted remove the other hashtag, so I now receive the message with only Re: Help/insights on hashtags on message subjects
OK, I then go online in hashtags (or in Messages, in either Topics or Message view) and click either one of these hashtags. I get the same results when I click either of these two hashtags, with all messages displaying both hashtags next to the subject, when in reality, each message may or may not have both, or neither. I was under the impression that one would get only the messages in the results list which are containing the hashtag one selected.
Is this a case of hashtags being topic-level based, regardless of whether they were used in each message within, or what? And if topic-level, why wouldn't they then be automatically-included in the GIO-outgoing message's subject if one removed one or both/all?
Apparently I must be missing something or not quite getting something about hashtags, or the way they are used here, or maybe I'm over-thinking things, I don't know, so any clarification would be appreciated.