and is the recommended action for stopping unwanted, non-abusive contact. For serious violations (harassment, scams, threats), always use Report instead of or in addition to Block.
Blocking is a definitive action that changes how you interact with that user: can you block someone on pof
Visit the user's profile and look for the menu options (often three dots) to select the block feature. What Happens When You Block Someone? and is the recommended action for stopping unwanted,