Error Messages: Improve the Useless Ones

[Jeremy]

Dear Kier and Mike,

Can we please, pretty pretty please remove the most useless error messages I have ever seen from XenForo. This does NOT help us whatsoever...:

Please enter a valid value.

Please, just tell us which value is invalid. Please. I don't think I've ever been so frustrated over something so minor in a long time.

Sincerly,
King Kovifor