the only thing TT needs is multiple solutions, this is why I don't use it. but your other points don't make much sense to me
I do use it, but agree with this point. TT makes one adopt a somewhat perverted way of thinking. Often you instantly see a win, but become afraid of overlooking a faster way to mate, or mate instead of winning a piece... And it's very hard to rate these adequately. E.g. if the player has lousy technique, he may fail to win a knight up (so his only chance is to mate on the spot). A more skilled person may convert a pawn. Thus, partial credit won't do the trick either. I don't want to receive, let's say, 50 percent of the credit for winning a queen instead of checkmating. Who cares? The opponent will resign anyway at this point...
i think the long endgame problems are tactical; the ones i have encountered have been some of the most delightful problems for me.
i think you are right, there may be an issue where the pass rate on the first move skews problem ratings somewhat. but i don't know how many problems suffer from this. i mean, what percent of problems you encounter are mis-rated?
and maybe we can have a rated mode where the time is ticking down but you don't have to see the bar. that might be mildly useful, but i don't know-- how many people want that?
There IS a rated mode where the time is ticking down, but you don't have to see the bar!
Personally I highly recommend giving this mode a try. Your rating may take a hit at first but in the long run I think this is a much better way to do TT.