No you don't.
Hashtag some-random-word is not cool.
Except when it's #nofilter. This hashtag says it all.
No, you did not use a filter for your photo like the other girls on your Instagram and Facebook.
Or maybe you did use a filter?
In that case hashtag no filter tells everyone you like to laugh, because you obviously DID use a filter.
Either case, you win. Be a winner. #nofilter