Aha, that's fine; there are actually a lot of questions in regards to character flaws. I have quite an interest in them, though as I've discovered in my RPing experience, having too many flaws can sometimes be as bad as having none. In any case, I think it's more interesting to think about a character's defects than redeeming qualities.
To respond to the flaw/merit section of your conversation, that was what I meant by the aspect and depth of a flaw; that is the extent of the flaw in comparison to other flaws or as a balance to the more attractive qualities. Ocean and I have had quite a conversation about this a while ago --she's pretty insane (in an awesome way) and keeps lists of traits with varying degrees of positive and negative connotations.
According to the list, being suspicious falls into the category of "generally negative descriptors, but not aspects that make you want to keep your distance," while being persistent is listed as a positive trait, though I can see how too much of any positive trait can turn against a character.
What I was talking about for the topic, however, is more of the character's perspective on these flaws, rather than the writer's. Does he recognize his own flaws? Do they hinder him in any way? What do other characters think about these flaws? Does he have flaws that are absolutely negative?
I remember jotting down a few flaws for Faris, but I can't quite recall where I've put that bit of paper. XD; Man, I hope I actually wrote it down as opposed to thinking about it while trying to get some sleep and ending up forgetting about it all <--something that happens all the time. I've nearly poked my eye out while trying to scrabble around in the dark for note paper before. XD;
I'll PM Ocean asking her if I can share the list of traits (as I find it very useful and look at it regularly), meanwhile, I've found this equally interesting list of flaws:
[Yay for Google!]