There is pararel loophole on https://www.mangadex.org/ and https://mangadex.org/:fixed:

[CoolOtamegane]

I dont know this is bug or not, since i'm dont know programming or other stuff. But i found this very suspicious
My official account always at https://mangadex.org/ accidentally my account logout when i typing https://www.mangadex.org/.
The funny thing I can Login with another newly account on https://www.mangadex.org/ while the official one still login on https://mangadex.org/
I'm afraid this bug can be exploited by irresponsible people.