On many sites we see an indicator if our password is weak, or strong, to give us a good indication to go with that password, or not.
I've been noticing on some sites, that after x amount of characters my "100% Strong" password, will turn to 0% weak, just with 1 character "over the limit." This is something that I've seen on multiple sites throughout the years, but on some this isn't an issue at all.
My questions are.
is there a reason why too many characters is a bad thing, even if it's a completely random password?
Why they are labeled weak after x amount of characters, even when they were very strong before that x character?
This question also ties into my other question here Are there any security advantages to forcing a password-character limit on reset, but allowing unlimited character in password-login? but wanted to separate them, as they are really 2 separate questions.