Why did you make our mail "unselectable"?

Considering it is our own mail we are looking at, just why have you made it "unselectable"?

I wanted to grab all the subject headers from a particular sender, and sort them to see if there were any duplicates, etc.

Thanks for making that difficult.

It's not as though these pages are viewable by just anyone. You have to log in first.

Just what sort of nefarious uses do you imagine people are going to make of a few subject headings?