With the new version of the blocking feature, the blocked account will no longer be able to see your posts or your profile. Additionally, you won’t be able to view the profile of someone you blocked but their posts will still be accessible to you should you choose to read them by clicking on them as their posts will appear in collapsed form under “blocked account”. Moderators get a special exception though, as they will be able to see your posts in the community they moderate, as well as your history within that subreddit, even if you block each other. You will also still see posts by a blocked moderator in their community. As for group chats, blocked users will still be able to see your replies, though the chat will have a reminder that the group contains blocked accounts. To prevent abuse, Reddit has placed a limit on how often you can block and unblock someone within a short period of time, though it did not specify what the limit is. (Source: Reddit.)
