Feel free to use the Alliance Recruitment chat room for promoting your alliance. There's no specific limit on how many times you can post, but we ask players to be mindful and not flood the chat with constant ads.
Even flooding the Alliance Recruitment Chat with ads is disruptive and can lead to reports from other players.
Regarding reports in general, we do try to always check the context and do not send warnings or ban your chat without first verifying that there has been a violation.
I would also like to recommend posting your recruitment ad on our Community Forum where we have created a category for Alliance Recruitment: https://forum.smallgiantgames.com/c/alliance-recruitment.