1 - Catfish and his aliases
2 - LB? [insert quote here]
3 - Disch
4 - Quite a lot, including LB, Disch, Grey Wolf and Null
5 - That's a nice question but a bit generic, and as such it will never have a good answer.
6 - SpoonLicker
7 - Like 4, quite a lot, as long as some basical rules are followed (such as being friendly yourself, [...])
8 - Albatross. Despite not seeing this user from long time, it's many times quoted for being a good one.
9 - SpoonLicker
I feel bad saying part from the obvious spoonlicker ones but I dont much rate your options.
theres 4 catagories; theres people who know stuff, theres people who are good at helping and know stuff, theres people who ask questions cos they want to know stuff and theres people who just mess around and socialize.
people here are a mixture of those four categories.
im neither of the first two just yet but I am working on it.
"Jack of all trades" is slang for someone who is good at lots of different things (trades means things like smithing, baking. etc. but that meaning is antiquated). I've heard that "Jack" refers to the card, i.e., it's a good card but not as powerful as the Ace (usually), King or Queen, but I don't know how true that is. "Master of none" should be pretty obvious.