Everyone is doin' it wrong.
Hashtags are a genius way of searching for "like" things. For example, if I instagram a picture of myself in which I look super hot and want others, preferably talent scouts, to see it, I'm going to hashtag things like #model #actress #gorgeous #sohot #sexy #instaself #vavavoom #boobs #hair #pretty #vain etc etc etc etc etc etc. (While we're on the subject, I hate vanity. I once had a roommate in college tell me I was vain - #bitch. Since then, I feel weird taking pictures with a normal face #sillyfaceineverypicture) Not, #talentscoutspleasefindme #I'mthehottestthingontheplanet #duckfaceisbackin #mycleavageisbetterthanhercleavage #thenewcindycrawford #betterthanmilakunis.
You know why? The simpler the hashtag, the more likely someone will find it. The more complicated it is, the less likely someone will find it. #theoddsofsomeonetypinginthesamewordyhashtagasyouareveryslim.
Did you catch that?
However, if you tend to use the same hashtag for the same things, it makes them easier for you to find. So you can make it as wordy as you want...if you intend to search for all of them later. If I always instagram pics of my son with the same hashtag, regardless of how wordy, I'll be able to search hashtags and find a plethora of pics of my son with that hashtag.
In other words, it makes no sense to post something like, "I just bought my dog, Lucy, a sweater. #she'sprobablyplottingmydeathrightnow." Because no one will ever, ever search for that. #iftheydoitwillbeamiracle #thispersonisclearlymysoulmate #sorryhussy