Oh Social Media!

I've been a Facebook member for a little over a year now, and I've debated with an acquaintance over the following question: As a Christian, is it acceptable to 'un-friend' someone on FB due to their distasteful posts? Or, should we become accepting of all of our FB friends and their unruly behavior because they are the ones who are in the most need of reading our scripture posts? 

I have 'un-friended' people who have consistently used profanity or have posted descriptive details of private situations. I don't want to read, see, or hear about such trash. Am I wrong to get rid of them?