This could just be the nostalgia filter [...], i.e., there were also a lot of pure status signaling works back then, but they have since been forgotten.
Undoubtedly there were, but I think a fair assessment can be made by observing only people who were recognized as high-status intellectuals in their own day. When I look at books written a century or more ago by people for whom I know that they were recognized as such back then, I simply don't see anything like the uniformity of opinion among practically all people who enjoy similar status today.
Moreover, on many topics, it's impossible to find anything written by today's high-status intellectuals that isn't just awful cant with little or no value beyond signaling. (And it's not like I haven't looked for it.) At the same time, older literature on the same topics written by similarly prestigious people is also full of nonsense, but it's also easy to find works that are quite reasonable and matter-of-fact.
Even if my conclusions are somehow biased, I don't think they can be explained by a simple nostalgia filter.
This is thread where I'm trying to figure out a few things about signalling on LessWrong and need some information, so please immediately after reading about the two individuals please answer the poll. The two individuals:
A. Sees that an interpretation of reality shared by others is not correct, but tries to pretend otherwise for personal gain and/or safety.
B. Fails to see that an interpretation of reality is shared by others is flawed. He is therefore perfectly honest in sharing the interpretation of reality with others. The reward regime for outward behaviour is the same as with A.
To add a trivial inconvenience that matches the inconvenience of answering the poll before reading on, comments on what I think the two individuals signal,what the trade off is and what I speculate the results might be here versus the general population, is behind this link.