Sometimes, when you're participating in a Hashtag that has prizes,
you might forget about it, or you might post so many feeds that you
can't see it anymore in your feeds list. This could cause you to
lose a prize possibly, if you win. That could be fixed if there was
some sort of list, on your profile page maybe, that showed all the
Hashtags you posted feeds about. I am a very forgetful person, and
sometimes forget about when I'm in a hashtag that has prizes, and
something like a list would be really helpful. I'm sure there are
some others who would benefit from it, and, after all, it wouldn't
hurt anything. Anyways, this is just a suggestion, and I won't be
offended if you don't support it, although I would love it if you
do support it.
A list to show what hashtag you've shared wouldn't go amiss. I know
there's the option to go into the hashtag itself to see if you
posted, but like you said it's difficult to keep track of.
So support from me - a list of hashtags you've shared be (well,
posted in on your notification feed) would be helpful!
If you want to keep track of your Hashtags, you can just save them
on a notepad and check on a daily basis. But I understand why
people would want this. I am lazy myself to do such things :P.