The trend is down because investors are starting to worry about the many Flags carried out by RHB moderators.

I disagree. The moderators only flag posts that are irrelevant, plagiarised, as well as report any one that is trying to abuse the system. As a matter of fact, the moderators are doing a great job to keep abusers away which is very good for the platform. Without the moderators doing this, you'll notice alot of people earning token through abuse, then dump them in the market at a very cheap price. They'll do that because the did not work hard to earn it.

Also, it is not just the responsibilty of the moderator to keep the platform free from abuse. The community as well (Expecially the one with high staked RHB) also need to get involeved in curation. Not just by upvoting, but as well as downvoting post that are not relevant to what the platform support.

Lots of rules and a little rigid on this platform.

Lot of rules? I see only guidelines 😉
Geniune reviewers would not complain about being bound to any rules.
By the way, I personally have a big plan for the platform, getting ride of abuser is a top priority and we'll do that without hurting the intrest of the genuine contributors, as well as the potential investors. You'll see quite a huge and exciting update from the team soon. So, stay tuned.

_{I used machine to translate your comment. I sinceirly appologise if your message is misunderstood due to misinterpretion.}