Unfortunately no, they are not grateful you found a bug and sent it to a GM. GMs don’t collect bugs or pass them on so it just ends up being frustrating for everyone involved. They really really need us to follow the Bug Report process and use the in-game report or Bug Report forum so it goes to QA.
Here is a great example from 5 mins ago of a bug being discussed on the CS forum. User is provided info on how and where to submit a bug report if the self help (UI reset) step does not solve it.