Since I’m sure there will be others who don’t bother to read:

Nofap communities tend to have a large overlap with extremist hate communities, and are often used to spread harmful and misleading rhetoric.

There’s also no observable benefit to not masturbating. The proponents portray it as some scientifically proven secret, but it’s the same scam as homeopathy and Gweneth Paltrow’s vagina eggs. Big, vague, impossible to disprove health claims supported by anecdote after anecdote.