You can add a person to your block list if you no longer want to receive any comments, reviews or information relating to that person in LittleBigPlanet™ and LittleBigPlanet™ 2 or on LBP.me. Adding a person to your block list prevents that person interacting with you and you from interacting with that person in LittleBigPlanet™ and LittleBigPlanet™ 2 or on LBP.me
Please note! Blocking a person does not block them from sending you PlayStation®Network messages. If you no longer want to receive PlayStation®Network messages from a person, go to the PlayStation®3 XMB™ menu or PlayStation®Vita home screen. See PlayStation®3 or PS Vita User's Guide for details.
This is hard to say. LBP2 has been such an amazing part of my life, many of the friends I've made here will always be important to me, which makes this hard to say. I'm never coming back to lbp. I'm not getting LBP3, nor am I making another costumes. Long story short, I had a very close friend who was why I played this game, but he betrayed me, lied to me, and let our friendship fall apart. He broke me. I accept all friend requests, but don't ask me about LBP stuff. I wish you all the best of luck.