EDIT: Here you go, my conclusion is spot on.
2.0.2.4x is not some random build Jolla never meant for us to see. It has been released and given out with "development and community" devices. Jolla must have felt confident enough to do that, otherwise they would either not give out the devices or give them out with some older build. Or release the devices with whatever build but not make the build accessible for anyone else. In short, they could have done a lot of things but they did not deem it necessary. Calling 2.0.2.4x bug reports on TJC "spam" and "useless" smacks of Dave999's style. Unless told otherwise, I assume that Jolla appreciates the reports exactly because it is a pre-early release. They even reply to some of those reports. This is not to say that I would encourage people to rush into random updates. Please only do that if you are willing to accept the risk and do not do it if you need your Jollas for anything important. But if you use them only for playing and do not mind losing your data, I don't see why not.