I am not sure what you are trying to say. Maybe a translation issues again. Did you get a captcha maybe? There are no "google messages" of any kind involved with the interactions on itch. Also, moderators on itch have that blue badge next to their username.
But itch.io is ultra-secure, in my opinion.
It is not. Accounts get hacked all the time. And malware gets uploaded all the time. Itch is a honey pot for malware spreaders.