/plugin unload xfer
/set weechat.plugin.autoload *,!xfer
/set irc.ctcp.action ""
/set irc.ctcp.clientinfo ""
/set irc.ctcp.finger ""
/set irc.ctcp.ping ""
The Transmission torrent client has an option to set a Blocklist, which helps protect you from getting caught and having the DMCA send a letter/email.
It's as simple as downloading and installing the latest client: