And how should they know that? Do you expect people to read every single post on Hacker News? For me it's the first time I have heard LoRa being used to mean something else. Obviously new people are going to keep being confused for as long as posts with confusing titles are being posted.

And yes, the name clash may not matter in either of those circles, but it does matter right here on Hacker News where those circles overlap.

Also LoRa devices exists in the consumer space, so seems a bit disingenuous to call it a niche radio technology.