Be warn! Facebook does disabled accounts if you violiate their terms of use. Usually Facebook will send an email to warn the user of the violation
Some of the common reasons for disabling accounts are :
1. You didn't use your real name
Facebook requires all members to use their real name when registering an account. This is their way to reduce spammers. It is to ensure that the users on this social network is geniune and also to ensure their advertisers of the reliability of their data.
2. You posted too many messages on a wall or in a group
Apparently, there are some whose accounts are being disabled for “spamming” when they sent too many messages out to 100 over friends. Some were posting too many duplicated messages which Facebook suspects the activities as spam.
There are also those who tried to befriend others who are not really their friends and being reported to Facebook as spammer.
3. You are under eighteen years old
According to one report a user’s account was suspended when they suspected her of being under 18. She was required to enter a work email address to prove her maturity, at which point her account was reinstated. [note: other users have pointed out that being under 18 is fine if you’re part of a High School group, though underage home schoolers have been told to bug off]
4. You wrote offensive content
There was a lady who has been constantly spammed by another guy. She was so upset that she wrote to him to f*** off and she reported him to Facebook. However, she was even more furious when Facebook disabled her account instead of the spammer’s!
5. You scraped information off Facebook
Big NO NO! Don’t try to use applications to scrap information on Facebook.
6. You advertise your business on their Marketplace
For some reasons, Facebook do not allow do not allow users to advertise services or businesses using the Marketplace feature.
If for some unfortunate reasons, your account has been disabled, you can try writing a nice email to the following email
info@facebook.com
privacy@facebook.com
login@facebook.com
appeals@facebook.com
I do come across many users whose account has been given back to them. But you might need to wait for a few days before they will respond.