I've been on Facebook ever since it went public. I've never been blocked from using the website, but an increasing number of my friends on there say they have.
I have been booted from several groups on FB for my conservative Christian stands on certain issues, however.

So many of my friends and family are on FB that I'll probably keep it, but it's good to have another social media account where I might be able to honestly express my political and religious views without being kicked out of groups or getting hateful comments.