A few things...
1. I am not a Pamela "hater", nor have I seen much evidence of hating anywhere on this forum. Yes, I dislike her as a contestant, but I do not hate her.
2. I am not in the age bracket that you seem to lump all Pamela "haters" into - I am 24, and the majority of my friends who are watching the show - aged from 19-28, and both male and female - don't overly like Pamela either.
3. I have genuine reasons for disliking Pamela, rather than it being in any way linked to anything to dow ith my own "inadequecies." If that was the case, surely it would be Kara that I would "hate"?
I think Pamela is grossly overmarked, and has been right from the beginning of the series when she ended up top of the leaderboard after almost falling over in her Salsa. She is being given extra "benefit of the doubt" in the scoring due to her age; it's almost like they're trying to go all-out to prove they're not ageist after all the accusations last year following Arlene's replacement by Alesha. Kara, in particular, has been given much more difficult routines week on week than Pamela has, but this is never taken into account.
Also, Pamela's gushing and over-the-top attitude is really grating, and has been since around week 2. I can't stand watching her in interviews (even the brief ones with Bruce / Tess after the dance) and think she comes across as very false.
So, that's why I dislike Pamela. Though if you want to find a psychological reason relating to my own flaws and inadequecies, I suppose that's up to you......