@Svetozar Angelov - Sorry to see you are having issues with spam here. I just wanted to pick up on where we are here, as there appears to be a lot of confusion, and I want to clear up where we are.
We understand you have an issue with spam, and I feel you believe we are in some manner ignoring this. Let me assure you this is certainly not the case.
You have stated there is a "Hole" here, without any evidence of this in any way. Just an assumption. While I understand the frustration, this isn't going to help your issue. We have no known security issues on the platform, and from what my colleague has seen so far, it seems the users are logging in and posting as normal, and they are standard users, who have logged in with a password.
A few things to note on that. If they have logged in with the password, then they have the password. There is no way in which to get a users password on the software. To make this very clear. If I have access to your database directly, with your database credentials, and have full FTP access, I still could not obtain what a users password is on your system, due to the way the passwords are encypted. And they are encrypted with PHP methods useds throughout the internet (not only our software). Quite simply, nobody has gained the password of a user through your software.
My colleague has also shown you there where to check if a user has had their details compromised on another site. Most users will use the same passwords across multiple sites. So if a site elsewhere has been hacked where their password can be identified, they have an email/password combination that may work on the site. Therefore they would simply be able to log in with those details. I'm sure you understand, thats not something we have any control over
You can use 2 factor authentication for all users. There is unfortunately an issue with the google one at present that we are looking into, but you can use question and answers. This would force users to at least have another action to log in, meaning if someone does know the password, they may stumble at the question/answer stage
We are more than happy to look at your settings to see what we can advise. But you do appear to be quite hostile toward people who are trying to help you. Both staff and other customers. I can only assume that is out of frustration. A frustration I can fully understand. But please do help us to help you. We are on your side, and do not like spam any more than you do 🙂