Blocked on sight:

• Free speech zones
• Conservatives, Republicans, Trump-ists, Holocaust or 9/11 or 1/6 deniers, nazis, white nationalists, anti-vaxxers
• Loli
• Folks generally trying to ruin the fediverse experience for others
• Folks who piss me off
• If I even suspect it's slightly illegal in my jurisdiction

If I am accidentally federating with any instances pushing this crap, please let me know and I'll block them (Please note that your inclusion in the above list is based on my subjective opinion and there is no appeal process. Not sure why you'd care about losing access to a single person instance but whatever.)