How do you block subreddits.

[u/[deleted]]

How do you block groups. The doppelganger group drives me up the wall. I can't get rid of the posts. I block five or so a day. After each block it shows up again a little ways down. I have no care in the world who you think you look like. After blocking the page several times a day I have resulted to leaving sarcastic responses. Between the doppelganger, am I ugly and a few of the others I am starting to think Ruddit is not for me .