#50 Geek Code no longer allowed in Bio

[Geoff Beier]

When I went to change my sig today (for the first time
in a while) it would not let me save my user info. The
error message given was:

Content filter encountered for bio
Reason: Please use fewer 'junk' characters.
Saving bio aborted.

My bio contains my "Geek Code", as it has for some
time. (see http://www.geekcode.com/ for details)

The text of my geek code is:
-----BEGIN GEEK CODE BLOCK-----<BR>
Version: 3.1<BR>
GO/L/CSd?s+:+a23C++ULA>*++(+++)P+L++E-W+++N+o+K-w--(+++$)!OM+++!VPS+PEY+PGP+!t<BR>
;
!5!X!Rtv---b+++DI+++(++++)!DG+e++>+++h++r++z?<BR>

[Rob Malda]

Logged In: YES
user_id=288856

Unfortunately this is a side affect of us trying to prevent
page widening and other attacks. Patches are welcome.

[Geoff Beier]

Logged In: YES
user_id=259553

I could certainly provide a patch to allow this, but what
attacks are possible via bios that you want to prevent?