Reddit says that developers who make non-commercial accessibility apps that make use of the online forum's API services will now get "exemptions from our large-scale pricing terms."
By submitting Your Content to Reddit, you grant us a royalty-free, perpetual, irrevocable, non-exclusive, unrestricted, worldwide license to reproduce, prepare derivative works, distribute copies, perform, or publicly display Your Content in any medium and for any purpose, including commercial purposes, and to authorize others to do so.
This has been their policy for a long time