I've experienced more than once a user taking advantage of being blocked, by me not being easily able to see their messages but the them being able to see mine & point them out to rest of the Discord server & harass me trough the other members responses to what they are posting. It almost feels like I blocked myself trough another person profile, because they can have almost full access to me, while I have no access to them.
I wish the block feature was more like on Twitter as an example, if you're blocked you can not see their tweets, should be the same for messages on Discord.
or maybe a setting that let's you have these 2 options
"Allow everyone to see my messages" "Allow everyone to see my messages except blocked users"