r/Blind is still a valuable resource for many people. No sense denying people access to it. r/Blind mods already created a Lemmy instance which they try to promote for their members. But learning new software can be challenging when you can't see, especially if the software isn't very accessible.
Someone needs to start a "campaign" for naming and shaming companies who advertises on Reddit. "[This company] supports a company that actively discriminates against the disabled. #SayNoToReddit"