Block threads from certain members??

Probably a real stupid question but I am going to ask anyway. Is there any way to pick and choose/block threads from certain users?? For the last couple of months since I came back to the forum–I was just clicking NEW POSTS and was able to scan thru the thread titles to see if anything of interest. Last 2 days I find a bunch of content posted clogging up that process and I assume it is OK so I need to deal with it on my end thus the question.