Click the envelope like icon on the right corner on top of your laptop’s screen beside the green alien icon
Recently, Reddit has changed its user interface. It would be helpful to check how to unblock someone on Reddit’s new interface.
The following are the steps to unblock someone on Reddit’s old interface
Head to Reddit app on your phone. Select "Settings" at the bottom of your screen.
Unfortunately, you cannot block someone on Reddit from viewing or interacting with your posts.
Blocking does not require a strong reason. Any hurtful, hateful, or aggressive comment from someone could become a reason to block anyone