Unlike FB which is designed to extract as much data from a user as possible, tracking every aspect of their lives in order to exploit it for monetary gain, CycleChat is a self-selecting group of cyclists - that's it.
Some like to chat about politics, some prefer to look at photos of bikes in pretty locales, some like to organise rides, some like to challenge each other to ride silly distances in January, and some like to talk about cotterless cranks (sickos).
Again unlike FB, there is no shady lucrative algorithm dictating what content someone will get to see or more importantly what they DON'T get to see; there's no filter bubble or echo chamber beyond a user seeing a thread that interests them and clicking on it.
If they then discover it's not for them they pick another thread - or in my case post screeds of inane waffle and end up accidentally derailing it.
Social media is not in itself universally bad. The same cannot be said about a certain other website, however.