Yes you are right that mate once the casino have announcement thread here in our community it's easy for us to report the owner or the facilitator of the casino because we are here every hours. While playing in the outside casinos which is too risky cause if there's a problem only Thing you can do is report it to thier customer services which is there's a time that thier facilitator not just very active in terms of reporting.
Every casino should have a thread in the forum community to prioritize service for users to report bugs, problems on the casino or other issues, the casino has a service team section to deal with problem reports but risks other casinos have no thread and don't have a discussion group on telegram and discord. Apart from having the benefit of improving service because it has a thread for the gambler community on the forum, other benefits can also increase the reputation of the casino based on ratings from reviewers who have given good reviews on the top casino lists.
Basically ANN thread in this forum is just an alternative place for crypto casino to introduce themselves to the community while reporting bugs, issues, can be done through the support system in the casino.
Of course ANN thread can be used for it as well but most of the time it is slower to get a response from the casino in this forum than if people try to contact them through the support system.
Talk about reputation, the best reputation is given by players not by reviewers because there are just too many paid reviewers in the internet that will always give good rating to any casinos that give them some money.
Yes ANN thread is a medium where all the information of a project is mentioned. Since there are many users discussing about the project, it also serves as a kind of marketing. And when multiple users give positive feedback about that project, it increases the reputation of the project. And op, by answering all the questions of the users, it also acts as a kind of high quality support. All in all ANN threads are considered as different potential directions