If the question is on-topic in principle but poorly phrased (the one you link to is rather prototypical, being a loaded question)
the intelligentsia seems to completely ignore the fact that socialistic ideas have worked in big parts of the world and the problem is that they DELIBERATELY ignore it. why?
then it could be asked separately by someone else. But consider what exactly is this question asking. "socialistic ideas" is poorly/hardly defined, as is "intelligentsia". (Don't tell me that Marxism has been completely ignored in US academia for example, because it hasn't been. This without getting to [extreme] right-wing view that most [or even all] of US academia is Marxist.) So this is quite a difficult question to focus properly. What exactly of "socialistic ideas" do you (or the OP of that q) actually claim are being ignored by US "intelligentsia", and who exactly falls in that bin?
So, I'm all for reference/canonical questions, but this doesn't seem to me like a topic that one could easily make such a question for. There are some near-duplicates that are more suitable for that kind of treatment, e.g. why communism hasn't succeeded in the US, or why it has a bad rap there in general, etc.
Etc. Never mind all the democratic socialism (usually in re Bernie) questions that often touch on the negative connotation of "socialism" in the US, at least in some circles. So it's hard to say this topic hasn't been addressed, in general. Maybe there's some angle that's missing coverage, but it's not obvious to me what that is.
A bit more search finds some complaints, I'm guessing for Marxists, that Marx is too marginalized in US academia nowadays. I guess one could peruse that and try to formulate a more focused question. On the flip side, there are those on the right-wing side that argue that there's still too much Marxism in US academia, even after considering the relative low percentage of self-identification. So it's hard to say how one could make an objective question out of this, if the focus or premise is that there is too little or too much of that...
Also note the last comment from the OP (in re the "evil" question link)
@divibisan thank you very much. That does answer my query to a large extent. – shashank shekhar singh May 3 at 8:10
Now if you propose that we have some duplicate/oft-asked questions list that newbies would be warned about, e.g. in a banner message... I'm not sure that is feasible without that kind of banner/list becoming overwhelming. (I know that on biology SE they now have a banner message in re Covid-19 questions, but I don't know of other similar examples. [Actually, it seems they had a banner on that, but it seems they took it down in the meantime, or at least it's not showing up for me anymore.) SE does has have an auto-search feature that is continuously updated while someone types in the their question. That cannot catch everything that is a [near] duplicate, of course.