"E-mail this user" errors not labeled well

Logged In: YES
user_id=573955

This seems to be a bug in the documentation. Do you have an email
address of your own listed in your user preferences? If not, then you
can't email other users.

Logged In: YES
user_id=371366

Ah, that would be it. I thought it was talking about the email
address that I provided when I created my Wikipedia account.

However, if you have no address in your preferences, there is
still a big bold heading on the page in question that says Not
Logged In .. which is incorrect. The page should probably
have a more accurate heading, and should include a link to
the user's preferences page with a note that that is where
they need to go to set their email address.

Logged In: YES
user_id=446709

There's definitely something odd going on -- I tried going
to my own user page (user:Brion_VIBBER) and clicked on
"E-mail this user"... and I also got the "Not logged in"
message.

This rather confused me, as I was both logged in and had a
valid e-mail address in my preferences... or so I thought.
When I go to Preferences, the e-mail address field is blank!

Now I *know* I had it filled in previously, as I was testing
the "mail password" function last week or so. But now it's
blank; checking the database confirms that my user_email
field is empty.

So, two problems:
1) My e-mail address vanished from the database!
2) There's still an 'e-mail this user' link for a user with
no e-mail address.

Logged In: YES
user_id=3076

I noticed my e-mail address vanishing unexpectedly once as
well. I also found a browser bug in Galeon that /shows/ it
as blank in the preferences form even though it's being sent
correctly in the form's source. So it might be something
like going to your preferences to set some other flag causes
it to present that field as empty even though it's been
filled in, then saving the form empties it.

Logged In: YES
user_id=446709

Yeah, looks like it may be a Gecko or related bug; I'm
running Mozilla 1.1b. After filling in the e-mail field in
my prefs and submitting, the prefs form comes up anew. The
field is now displayed blank, but the source is correct:

Your e-mail: <input type=text name="wpEmail"
value="blablablabla" size=20><br>

Saving of course saves the blank password.

It also displays properly in MSIE... saving the HTML to a
file and loading it again, the address does display in Moz.

Ahhhh, wait. If I clear the Wikipedia login out of my
"stored passwords", everything works fine. Tell it to save
the password on the login form, and *poof* empty e-mail
field in my prefs again. Definitely related to the form
management; I guess it's somehow confusing the two forms?

Workaround: don't trust Mozilla's password management; use
the "remember password across sessions" checkbox instead.

Logged In: YES
user_id=734240

This bug has been migrated to MediaZilla:
http://bugzilla.wikipedia.org/show_bug.cgi?id=356
Please leave additional comments or attachments there.