Do you delete a post or lock a topic every time you are wrong, is that a real solution?
The forum doesn't offer any direct service to users per se, other than providing this platform for us to discuss like we're doing now, it's establishments that come to the forum to offer their services, and yes they can be wrong, fraudulent, scammy etc, and you can air your grievances against them to prolly warn other users about them and so they get a negative rating, but even in doing so, you must follow the forum rules, for example if you post an accusation against a company in the B&H section, it'll be moved to scam accusation board, it does not mean the forum is wrong, it's just the due process and mods have to follow it adequately, just like in your case.
Is this forum made for people to help each other or just to promote some sites and bookmakers?
I think it's primarily for discussing about Bitcoin, cryptocurrencies, and of course other whatnots. But cause the forum is really "big" and houses a lot of users, establishments wish to promote their services here, which till now is allowed.
Is it real for you to support and continue to advertise bookmakers like 1xbit? A boomaker that has scamed thousands of people, they can still be promoted and advertised.
There's an axiom of 'do your own research', and it does not apply only to the forum, but all your crypto activities, it's up to every user to do their research about any service/site they come across on the forum, if you're scammed it's on you and not the forum, but if there's an establishment that's proven to be fraudulent, then they'll receive negative ratings from DT members to warn users about them, thus any user who does his research will see such rating and steer clear, that's the importance of DYOR.