I'll offer a couple of explanations.
First, the "undergraduate" thing. This is in your profile, that you control. Are you saying that you entered as "College" or something else, and it changed to "undergraduate"? Simple fix - edit your profile and make it right.
Second, the points thing. I suspect this is tied to the number of "thumbs up" versus not, as well as to a vote that people entered. While people cannot undo a thumbs up, they can change their vote from a possible five stars to one. Some people probably converted their prior vote to a lower one based on recent posts (I did today - haven't seen any real discussion about PTSC from you for quite a while, and this recent bunch add nothing).
Maybe lose the paranoia, and stop the accusations, and post a thought worthy of consideration about PTSC and it'll change.
And do you really care THAT much what your ranking is? Personally, I think I'd like to join the folks in the mailroom (ever seen the old musical "How to Succeed in Business Without Really Trying"?).
For your consideration. And I really do hope you do as I suggest. I will immediately vote you 5 stars (how's that for an incentive!).
Respectfully,
SGE