Well you are able to change the port range you will be using.
So maybe the 'unusual port' warning should also depend on that setting.

Indeed, resolving or doing /stats L (as on ircnet) is a quite 'expensive'
operation, so it should definitely be configurable somehow.

Ah bouncers, yes. Totally forgot about that crap.
Still it would be nicer if you couldn't specify the IP in DCC.
The bouncer should be able to forward DCC CHAT or SEND somehow.
In the same way as it handles IRC connections.

c'ya,
fiction