There’s no way to “clean” them. Trust, I understand the desire, but I’m not sure using pirated plugins on production e-commerce sites is the best idea. If your website gets malware from it, your customer data is at risk along with the business itself.
Some plugins have simple variables to check if you purchased, and you might be able to change it in the plugin editor and get the full features. This won’t work for plugins that phone home.
Unless you have a seedbox, I’d still use a VPN on private trackers. You don’t want to expose your actual home IP address - anyone can see it when you’re torrenting (in the peers tab). You are correct that most companies that DMCA aren’t following private trackers and therefore it’s unlikely that you’d get a “love letter” but again I’d use a VPN for your home ISP.
As for getting into private trackers, there’s an OpenSignups community here. Otherwise, you have to usually know someone with invites to get in.
I use Aliucord which by default removes many of the associated Discord trackers.
It should be noted that all 3rd party apps are against Discord TOS. No one has ever been banned for these clients as far as I know, but it is possible that they could start banning in the future.
Heat pumps are fantastic, some of the most efficient machines humans have made! Recently upgraded from an old 1950’s oil furnace to a heat pump w/ electric backup and I’ve saved so much money.