I got this message when I tried to log in:
You exceeded the maximum amount of login attempts. In addition to your username and password you also now have to solve the CAPTCHA below.
I haven’t been on for a while so I know it wasn’t my error. Someone must have been trying to log in as me and couldn’t decode the password. Be careful.
This happened to me on several occasions in the past , i was less than amused believe me 
Same thing just happened to me. Someone is trying to guess pw’s around here.
I just logged out and logged back in and it gave me the same message and I had to type in that silly letter and number thing a few times before being able to log in. Something is definitely going on. 
I confirm that I have experienced such situation a few weeks ago… At that moment I have tought it was my mistake but I had a strange feeling.
Yup, when I was out of town on spring break a couple weeks ago I went to log in and that was the first thing that came up.
Some people 
It’s happened to me twice now
Nick
It’ been happening to me too, but since it’s happening to so many people it’s most likely an error in the system.
Same thing here
Same here
SAME HERE GUYS
Ditto 
My avatar was changed to a different picture. I did not change it myself. So same here! What’s the deal?
Yeah, something’s going on.
no MODs going to chime in and let us know whats going on? Kinda sketchy to me!!!
-Tyler
Happened to me the other day.
Same here, Igot the same message that I exceeded my amount of log ins. What a PAIN IN THE ASS its been lately at times that I log in, click, home, general discussion, or whatever and Immediately I have to log in again, and again, and again. Now I noticed its when I’m on AOL. When I’m on Internet Explorer, No Problems!! Bob
It happens to me everyday! I never realized that someone was attempting to hack into my account!
php forums sometimes have issues with this. I would say I was fairly certain that none of your accounts were hacked into and that no one tried to get into your account. It’s just a html loop error in the coding.
I was about to say, wonder if it was that one dude that threw a hissy-fit a few weeks ago…
Oh, well. I stay logged on, so I haven’t experienced this.
Hope it blows over 