exit node in my home
I also allow 993/995 (IMAP/POP3 over SSL). Sadly, I don't allow 465, SMTP over SSL, though I've pondered enabling it.
If you're trying to help standalone MUA users send email... 465 - this is smtp over TLS, you don't / rarely want this legacy mashup thing 567 - this is submission over TLS, you definitely want this usefully segregated authenticated thing
SSL is deprecated, call it such and move on. If it speaks TLS, say TLS and use it.
Death threats, kiddie pron, and hacking / crime, is what gets LEA knocking. Copyright is what gets your mailbox stuffed. Any port can be used for any thing. "Risk" of "attention" is relative therein. Post a notice on your doors, and motion detector security cameras to alert you... at least that way your physical risk is minimized.
Have fun :)