This view on the community also explains his recklessness not only with aggressively monetizing HPMOR, but also his willingness to risk drawing JK Rowlings attention to his fanfiction (towards the end of HPMOR, one of his author's notes was looking for someone to reach out to her).
I would try to get in touch with J. K. Rowling to see if HPMOR could be published in book form, maybe as HJPEV and the Methods of Rationality, with all profits accruing to a UK charity. I’m not getting my hopes up, but I do have a rule telling me to try rather than automatically giving up and assuming something can’t be done. If any reader thinks they can put me in touch with J. K. Rowling, or for that matter Daniel Radcliffe, regarding this matter, I do hereby ask them to contact me at yudkowsky@gmail.com.
Rowling (and Warner Brothers) have been litigious with their IP: https://en.wikipedia.org/wiki/Legal_disputes_over_the_Harry_Potter_series#Other_accusations_of_infringement . So this was a reckless move on EY's part, possibly indicating that he doesn't appreciate the delicate place fanfic (and its communities) are in.
Edit: thinking about the way Rowling has shown her true face over the past decade... "with all profits accruing to a UK charity" makes me wonder if in whatever fantasy universe Eliezer did talk Rowling into allowing published fanfic to be monetized for "charities", that money would all end up going to TERF "charities".