Alternate question: What did you release? I released quite a few amount of mons, mostly ones that I had no interest in evolving in the near future, or duplicates. I'd say I've released a good amount of Pokémon already. What about you?
i've released everything that wasn't a legendary, mareep, or surfing pikachu. I think I also have a mantine and vivillon but those are special.
So far the only ones I think I've released are a Kangaskan and a Celebi egg. I might be wrong though.
I released SO many. I had to catch tons for testing purposes, so when this feature came out I was very very happy.
The Machop which I thought was a shiny, the Cyndaquil I got too excited about, but not my Squirtle. He was my very first Pokémon, okay? I got emotionally attached.
Three Eevees, I couldn't tell which was Kanto and which were Johto so I decided to try find some new ones instead.