It’s all usenet, yeah. I forgot you can use the above programs with torrents too :p

I use NinjaCentral, DrunkenSlug, and nzbgeek, all paid. AnimeTosho is free and good.

You can with “Nicotine+”, which is an alternative client for soulseek.

The Cloudflare human verification thing checks browser parameters that some extensions block or fake. Likely caused by “Canvas Blocker” if you use that. The fix is to add the specific Cloudflare subdomain this widget uses to the whitelist.