Here are several points of logic you could have considered, which make your initial comment an odd way to facilitate the change you are looking for.

• The community has very low activity. Suggesting it would do better without what little it has left is unlikely to sit well with anyone.
• The level of activity is not high enough to establish a "pattern" of content to begin with. Any posters haven't seen posts by other posters in weeks, and are all essentially posting in isolation. A single new active contributor could make 75% of posts whatever they like, by merely posting weekly.
• If you aren't seeing enough content you want to see, the one who needs to start posting in order for it to appear, is probably you.
• The best case scenario is not that I or any other posters take your "concerns" to heart and start posting more of the stuff you want, it is that we take our activity elsewhere.
• If a place is full of content you don't like, you should leave. Trying to change it for the better by removing the parts you don't like won't leave you with a community full of stuff you DO like, it will leave you, and everyone else there, with nothing.