Users are complaining about not getting awarded trophies (as I've mentioned before) and I've found that all the users I've checked so far have a really old last activity date. That would explain why they didn't get trophies updated. But the problem is they are posting and doing things on the boards. A user posted today asking about why he couldn't get trophy points and his last activity is marked as the same day he registered (Nov 3rd).
Where should that value be getting updated? We must have code that incorrectly updates users' last activity field.