Google will probably punish unnatural +1's or even the account. A few have posted about losing their accounts. also buy, sell, trade or exchange of +1's (or any social bookmarks) is not allowed on DP forums.
I would say no - you would be cheating the search engine using its own social network... seems a little bit tricky really
Google and others track social metrics and if a group of accounts are continually +1ing the same thing they will catch on.
What will do buying +1 account? At first its cheating and No one allows cheating accept cheats. So better stay out of this. I am a victim of cheats because I was a cheat. Have a cheating free life and stay on the top with honesty.
Offtopic Anyway whats the use of it ? Does it help improve traffic? if so, from where? from circles or from web? am I wrong?
are you planning to buy Google + account? but why???? i think in your family and friends you must have one person who has a Google + account. so just get an invitation from him
You can buy +1s and if your profile is suspended, you can visit this to recover your profile http://www.blogotechblog.com/2011/07/regain-suspended-google-plus-profile/
It's so easy for Google to detect bought +1's it would be as smart as to buy links from an Indian link farm... (Don't do it, "black hat" is the dark side of the force, they lose in the end) Not sure about the suspension, I do know that bought +1's only show as a bigger number, which might appeal to some, but by no means improves your SERP position.
I've read some google article, for now its just like meta description, it can increase CPI. If you see there is a lots of "+1" you might think there is something good.
If you buy them then get it from a legit source and get them Dripped to your site slowly,not all at once