Please consider adding a 'no cryptocurrency miner' rule to game dev uploads. Classify them as the malware they are and protect the end-user. Let's not have itch.io become a dumping ground for malwareisms like Steam.
I don't feel that ANY user wants to have any kind of cryptocurrency miner software touching any part of the game whatsoever. There are some projects wherein standard normal game activities generate 'game currency' as a cryptotoken to identify that unique content and allow players to resell it. THAT type of thing does NOT require any cryptocurrency miner software on the end-user side; all of it is cloud/serverside with validation.
EDIT: Speaking with a few game devs (and many gamers); nearly all of them feel that any dev even attempting to get away with putting any kind of miner/malware in their releases should be banned from itch.io permanently; first offense or otherwise.
Please reconsider that stance; a very clear 'no malware' rule needs to be put in place, including ATTEMPTS at POTENTIAL malware-like activity. For a recent example, please reference current events regarding Epic Games Store launcher using malware-like activity to illegally-access & weak-encrypt information from Steam friendslist in a pathetic attempt to acquire information without explicit permission.
In addition any developer that does this AT ALL (whether later-removed or not) needs to be permanently banned from the itch.io store with prejudice. I understand that itch.io is currently dev-focused, however in the case of malware and/or malware-like activity, there should be no tolerance of such on the itch.io platform.
I'd love to promote itch.io more as a legitimate storefront if such basic consumer-protections were put in place. An 'unconditional' refund system equal to or better than the Steam Refund System (2 hours or 14 days, whichever comes first) would also be nice.
The projects should not just be flagged, they should be auto-removed.
The 'developers' of the projects should also be flagged & a perma-ban should be issued if they are found to have violated the anti-malware rules. If a developer has a legitimate concern then they should bring it up PRIOR to uploading. For example, I personally developed & submitted (on the Nexus Mods website) a self-created utility for a video game that was created utilizing the 'trainer' EXE creation functionality of Cheat Engine (an open source program). I manually requested a whitelisting and explained how the utility was made and why it was being flagged. After review, my request was manually approved and the entire process was done with little fuss.
If a website for mods can manage a certain level of professionalism, then I'm certain that my expectation for the itch.io platform is to do far better than that!