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Just like on SE, things are vastly different between individual sites.  You say you came from StackOverflow.  Our most similar site is Software Development.  It does seem to have reasonable activity, and there aren't any 8 year old questions there.  That's because we deliberately <i>didn't</i> import existing questions from elsewhere.  I also looked high, low, and sideways, and didn't see any mention of cabbages.

Early on, a few sites were initialized by copying content from elsewhere.  That turned out to be a mistake.  Just as you say, it's annoying to go into a question only to find it was asked 8 years ago, and not even here.  Search engines also penalize sites for duplicate content.  Some of that may be spilling over to other Codidact sites that didn't import any content.  The few sites that did import content are consistently near the bottom in activity.

So no, we shouldn't import more content.  We should be getting rid of what is here.  While I think that importing is now widely seen as a mistake, only a little has been done about it.

You also need to do your part.  That starts with actually understanding the organizational structure, both where you came from and here at Codidact.  You seem to have confusion between Stack Overflow and Stack Exchange, and with that same confusion now here.

If you want to be taken seriously, it also helps to write clearly.  That starts with thinking about what you want to say clearly first.    Non-sentences, not capitalizing the word "I", and generally flaunting very basic rules of English writing don't help.  We realize English may not be everyone's first language here, but I'm talking about the very basic rules that anyone that can write any English at all would have to know.