Clearly these users aren't profitable. If people on the other platforms don't notice or care about these bugs, they're better customers.
It's not that they don't care about the bug its that they don't care about you. Users will just use a competitor, spread bad word of mouth, and be hesitant to try again - all without telling you a thing about their decision.
Most users just experience the bugs, get mad about the game and move on. Being able to fix the bugs fast and early means less users will experience them in the long run, which in turns means a better gaming experience and very likely better player retention and higher review/player attraction
The article states that the Linux users report more bugs, but these bugs affect other platforms as well. Hence, the Linux users are probably even more profitable, because they provide free QA.
Or they are experiencing the bug and are slowly but surely becoming ex-customers.
> Clearly these users aren't profitable.
This assumes facts not in evidence. Defect reporting can be ridiculously valuable, especially in situations where your product is delivered over the internet. For example, a user reports a "can't reset password" bug. It turns out to be a hack where the auth address is being redirected to a server that is collecting credentials.