I have a few coins I earned from doing bounty campaigns last year and they're pretty much useless since its worth is only like less than a dollar. I don't wanna just dump it because I worked hard for it but I can't exactly sell/trade it either.
So my question is, is there anyway I can still make use of these coins?
I think there's no other way for you to use it but to sell it in an exchange. Basing on your rank, I think most of your bounty is from social media campaign were there are over thousands of participants, that is why you only get a few coins.