But yeah, backing it up with text should be done anyway IMO.

Also, as an aside (and I know I'm guilty of not doing this too) when using hud messages, it's useful to have the hudmessage copied to the console. Print messages are automatically sent to the console but hudmessages aren't (just as well considering some of the uses that hudmessages have been put to) but it can be useful to copy important information to the console so that the player can check it if he misses it, or forgets it, or whatever.
[edit]Kind of what Gez was saying I guess.[/edit]