Well, for now you cannot 100% believe anything about that war, because it is still ongoing and spreading propaganda and misinformation is normal part of any war.
Because - if I can read something on the net - so can Gaddafi and rebels.

Even if victory in Tripoli is false - it is a good way to harm morale for Gaddafi troops anyway.

As for the idea that Col. Khaddaffi was a brutal oppressive dictator; Libya was apparently one of the best organised states in Africa with a good educational system and likewise healthcare. Possibly the best organised country in North Africa.
No doubt he had many faults both as a person and in his administration, but there are plenty more brutal regimes in Africa...
Yeah, and Baltics should have remained in Russia.
Just like Gorbachew and some western leaders wanted.

Somebody who I personally know and respect (an arabic speaking woman who's an old friend of mine)
has several times mentioned that she has a high view of Khaddaffi.
Yes, I have met a few people that are whining for USSR and want it back too. (poor miserable losers)
Watching his speeches - it is clear that old nutjob (Gaddafi) has lost his mind.

Because my country was oppressed by brutal and inhuman regime for decades - I strongly support people from Arab world that want to get rid of their dictatorships.
Of course there will be a lot of chaos and uncertainty - just like after USSR collapse - but after that they might be better of if they choose a democracy and do not let another dictator to take power (most of former USSR failed to do it).