Planning on deleting my alt accounts, however I'm not going to delete my main account, I will just programmatically delete all my posts and comments.

I suspect that deleting accounts won't be what Reddit is looking at anyway, all they'll care about is ad revenue, and my accounts which were not generating any revenue will not bother them in the slightest.

Windows, because of gaming, otherwise I'd use a Debian based distro or Fedora.

I use Debian on my servers.