1.how long does it take to level to 50 using archeage?
1-33 with questing plugin is probably 20 hours. 33-50 from grinding mobs is probably another 3 days? Maybe 4? I didn't keep track. It's very likely you'll get autobanned with the questing plugin since they can detect the path it uses (it's used by thousands and has had as many bans -- you can appeal them and typically get unbanned then continue leveling with it, but I'd try only 1 name at a time with the questing bot.
2.whats the best use for your labor points to earn gold?
Purses will be the easiest and best use. Jester purses until the new purses release - 1.7 purses coming out in auroria next week.
3.whats your gold/day average?
1.5k gold a week is probably the average with jesters if you're patron. Get quest gear at lvl ~45, farm easy mobs for jesters in a secluded area, afk for labor when you have more than enough purses. -- With the new patch you gain the same amount of labor while offline, so you can bot for 12 hours worth of purses then switch to another name and continue the cycle.
4.if you get banned once,is it impossible to bot again?or you can bot again?
No, it isn't impossible to bot again but they sometimes IP ban all your names. So you'd have to start over.
5.do you get banned by selling gold?
Yes, if you use the mail you will be banned. Your only option is using the auction house, directly trading (and they putting an item up), selling gold through an appraisal cert on a cheap plot of land/house (a large amount), or other methods but I'm not mentioning them.
6.do you get banned for buying gold?
Typically, no, they just remove the gold if they traced it and banned the gold seller.
7.is it more profitable than wow?
I don't know. I don't do it for money, and it would be stupid to do it for money imo. If you want to make money online go start using mturk from amazon. You can make over $20 an hr easy. Or better yet, get a career or start a business >.>
I use a bot army to achieve personal ingame goals, nothing else.
