I post to similar groups BongPilot.

As Wrayth says if they really wanna find you they will.

A few simple steps you can take:

1. Log in via an anonymous proxy

2. Use a free mail provider NOT in your country (www.mail.com is very very good)

3. If your really paranoid then dont use simple text strings,
For example if we're talking about marujuana.....

- WEED Becomes W33D
- Marujuana becomes MJ or MaryJane or greenage etc...
- BONG becomes B)0NG
- SPLIFF becomes SP11FF

Im sure your creative enough to make up your own!
Dont get me wrong this isnt fool proof but if there is anyone (CIA, FBI, MI5, ATF, GCHQ) looking out for particular sets of strings of words then this will help confuse and dilute them.

Hope this helps mate
V$D$