Earlier quoted context omitted.
Just for my understanding, any special reason to have 100's of tabs open? Meaning: I basically have a mindset which as a programmer would say: "shall I spend effort trying to optimize my app for users that have 200 tabs open? Naaaa, I don't see a usecase for that to happen."
It happens when you use tabs as bookmarks. The solution is to use bookmarks.
Perhaps there should be a way to passivate tabs so that they don't take up memory when they are not used for a while.