Hey, good to see you. It should be obvious why the forums are in their current state. The forums were originally based upon Super Skarmory, a YouTube account that hasn't (actively) uploaded in over 4 years. While our community is closely knit and was somehow able to survive through all this time, but there really isn't much reason to post on these forums at the moment. We don't have SS to bring us together anymore, so all that's left is Pokemon. And there are plenty of other more active places to talk about Pokemon. Personally, I'm not even very interested in Pokemon myself anymore.
Also, we're all growing up. I was 15 when I joined the original SS forum. Now I'm 22. I have very little free time at this point in my life between school, my job, and household duties. I imagine other people are similar with having much less free time and different interests.
I'm not too invested in the forums myself at the moment, and neither is anyone else. I still try to make news posts whenever there's new Pokemon news, but it's a bit disheartening for me to put all that effort into making these posts (and formatting them with HTML takes a crapload of time) just to have no responses to them.
If we want the forums to be in a better place, we just need more users actively making posts. A handful of people reforming the community is all it takes. Otherwise, this is the best we're gonna get.
And by the way, your old posts are in the "archive" section at the bottom of the forum, if you care about that.