as being a DoS kiddy in the past i know a couple good reasons why someone would or should hide their version reply. also, if u know enough about masking your version then u should already know what version your running. at another stand point its just a way to customise the look and feel of your program. as in Bitchx or some other linux irc clients. not sure about other ones.

my thoughts,

-Nick (Darko)
-#Chatzone, #helpdesk