There are certainly non-astrology forms of signalling, but can you name any non-signalling benefits of "rational" astrology? It seems to me that this link is really just covering some examples of signalling.
Yes: safe harbor laws that grant protection if best practices are followed. You might explain the laws as resulting from signaling concerns, but the benefits of the safe harbor protection are codified, and not based on people judging signaling. In particular, it's worth noting that the benefits accrue even when other behaviors signal the opposite intention.
Consider OSHA rules as an example. Follow the rules, and you're protected. You don't get hit with OSHA compliance fines, and your insurance pays out in the event of an accident. If the latest safety rese...
The article can be found here. While it is not, for many of us, new ground, it is an excellent treatment, and it requires no rationalist background in order to be understood. The subject is the pernicious pull of doing the standard thing, regardless of whether or not the standard thing makes any sense, and it does us the service of giving that phenomenon a descriptive link we can share as well as an excellent name.
I hope to, after more discussion and thought, write a main post on the subject.