The Black Tux. We make modern rental suits and tuxes, and apparently give relationship advice.
Everyone knows that you can't truly be in love unless you have a good wedding hashtag. It's the only way to be sure you're "compatible". That's why we created the Wedding Hashtag Test (and generator).
Like any reliable invention, we rely on word pairings we scraped from wikipedia that might rhyme with the name(s) you entered. Then we integrate one of the names you gave us into the word pairing to generate the hashtag.
If the hashtag is good, your relationship will get a high compatibility score.
If it sucks... well, your relationship gets a low compatibility score.
It's up to you to decide whether to... you know, you do the math.