New Idea!
You know some users tell- 'I'll will click u with berries'; but
they really don't!
To find out why can't pokeheroes in the interactions today put a
hash or something near the usernames who fed the pkmn with
berries?
Don't we already have this? When you click on the Pokemon
you can see who has interacted with it. If their name shows
up(which you can easily find with a ctrl+F on the computer) then
they've interacted, if not then they haven't.
I really don't see the point in this suggestion because of that
fact. It just seems kind of redundant to me.