This is a difficult time....families, friends etc support a candidate that others find appalling....when it's up close and personal (my husband and I support different candidates) we have found over a 57 year marriage that silence on these matters is golden. As my husband is the only person in the family with his candidate...fortunately there are lots of other folks to talk to...

I find with friends that if we support the same candidate we discuss it..if we don't,  we don't.

As to blocking.....I really liked that Disqus feature....as there was a lot to discuss with folks with whom I shared an issue...