She wasn't bad to start with, half the mane 6 treated her like crap, so what did they expect when she came back in S3? They caused it, it bit them in the ass. The sad part is, it took until S6 for someone to finally give her a chance, and Starlight showed more kindness and friendship than most of the other cast, outside some stupid ass "MAH LESSON" episode.
Then Trixie helped save Equestria with Starlight, even though she was still kinda pissed at Twilight for the stuff before, and for the crap in No Second Prances.
In short, no she's not bad. She made mistakes, sure, but the cause don't to admit they did, and it took someone else who made a stupid mistake to correct their mistake.
Also; people who didn't like Trixie until she was "redeemed" are weakest race.