My quick psychological analysis is that Sunny has narcissistic traits since she would spend her streams talking about herself, and she was a bit immature. Most of the e-girls are borderline or something else, which means they were MUCH harder to become functioning adults and either die of a suicdie, drug overdose, (or a murder in one case), or spend their 20s lounging around working retail and doing drugs with no future. Their looks won't last forever.
Sunny's IQ is also higher than the typical e-girl as well. A lot of them are rock stupid.