The title implies all. So what happened today was, I tried logging into my account but failed several time (3-4 tries). Probably because, the caps lock was on, or I pressed log in before solving the captcha, or the code got expired, simply put I wasn't being careful enough and it took me several attempts before I could successfully log in.
Well actually nothing happens which is why you have a captcha to avoid someone from brute forcing your password. This simply means if someone is able to guess it via a couple of tries then you are either at fault for putting up a weak password or that person knows a couple things about you to a nice extent to be able to guess your password.
If you want to safe guard your account I will recommend you never use that captcha bypass link because it's the only way your account can be brute forced.