If that's what it takes to get it active, yes...my main point is that you can't come on here complaining about your site activity when you're not active on it either.
this is confirmation you don't realize how communities and large websites are managed...
Google no longer likes forums very much because they rarely have interesting and informative topics, but they are more a place to "chat quickly" so if you have a forum with thousands of posts (in my two forums I have more than 900,000) there will be various indexed posts which, although few compared to the total, will still be enough...
For this reason an admin is much better off using his time writing interesting articles on a worddress site...
Writing posts in the forum to which no one responds (since there are very few users) is just a waste of time and certainly does not increase the number of forum members.
As I have already said several times, the forums that work are those that deal with topics that cannot be discussed on Facebook.
I am very fond of forums and have had 2 for many years but I am very happy that nowadays they are 99% practically useless because with around 30 new discussions per month a forum cannot be defined as active because I know what it means to have an active forum seen that years ago I had thousands of active discussions per month.
After 20 years of forums and sites (I also manage various medium/large sites) I feel like blaming mainly the developers of the forums because they have never renewed themselves and are stuck at 20 years ago!
The strength of social media is that they keep you glued to them thanks to the fact that for anything that might interest you they send you emails and notifications...
All this cannot be done with forums after 20 years...
If you don't understand these things it means you don't know how to manage large communities and many users because either you don't have them, I have managed communities with little competition on Facebook.