A blog can be a very dangerous thing. It can come back to haunt you. You never know who is reading-- perhaps your employer.
And.. a defunct blog can still come back to hurt you down the road. Once up on the internet, it is there for all eternity. You can take down the site, but it lives forever.
Background checks are now becoming common place in employment. Would you tell a potential employer that you "curse like a sailor and drink like a fish?" That is exactly what you are doing when you write this kind of thing down in a blog.
There are plenty of stories in the news lately about how blogs can come back to bite you.. here is one well worth reading from the Chicago Tribune:
http://www.chicagotribune.com/busine...i-business-hed