I also like Club J work...really innovative ...so i see why with piracy being rampant , they might come down hard on any thing like this ...but it does seem like 'over reach'.
Despite ClubJ inflammatory language I would have replied to them first and tried to resolve this amicably as creators / colleagues. Vam is small and it won't grow if it becomes toxic over all this fu@king endless paid content wall which imo is killing the scene and leading to turf wars.
The 'threat' to remove you from the site is a little much ....and COMPLY? not a great look.
Clearly this is between you both. I support both your excellent work and see why clubJ might be worried ...though they are the more successful creator (via patreon) so this does seem a little like bullying?...threatening someones livelihood by having them 'removed'.
I hope you can resolve this between yourselves without spilling out into forums further. This is not how I would have gone above resolving this issue. There does seem like a genuine misunderstanding here which i'm sure you can both clear up like adults. If you're able to run a patreon and both have over 200 supporters i'm sure you can resolve this issue! Good luck :-D