More specific way to block users

I'd love to have the option to block an user only in a single channel or even better, to block a certain type of media e.g. pictures posted by an user. As an example, I'm a vegetarian and having a foodgasm channel causes a lot of people to post pictures of meat which makes me a little uneasy but blocking everyone who posts meat would result in 40 blocked messages so just being able to block users in that channel would allow to easily filter content and having those  people DM me because I don't want to shut of communication and the food thing is just an example I can imagine a lot of other things where filtering out the one annoying person out of a channel would be helpful.