creating PGP key should warn about comment field

Binary package hint: seahorse

When creating a new PGP key with seahorse, it displays a tantalizing "comment" field without warning newbies that this will become part of their encryption string.

Steps:

1) Open seahorse
2) File -> New
3) Select "PGP Key"
4) Enter Name, email address, /and comment/
5) Finish rest of steps

What happens? I get a key string like "David Tombs (my stupid comment) <email address hidden>", where everyone will see my stupid comment.

What should happen: Seahorse should tactfully warn the user like GPG does:

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <email address hidden>"

ProblemType: Bug
Architecture: amd64
Date: Sun Mar 21 23:01:23 2010
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: seahorse 2.28.1-0ubuntu1
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
SourcePackage: seahorse
Uname: Linux 2.6.31-20-generic x86_64