I don't know. I can't isolate it because the text just looks normal, same as every other post in that thread, to me. I'm using Firefox on Linux. It's possible that it may be a browser setting on your machine, but not very likely since it's doing the same thing for you in Windows as it is in Linux. Are you using the same browser in both operating systems? Or are you using a different browser in each one?
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“Trouble rather the tiger in his lair than the sage among his books. For to you kingdoms and their armies are things mighty and enduring, but to him they are but toys of the moment, to be overturned with the flick of a finger.”
― Gordon R. Dickson, Tactics of Mistake
― Gordon R. Dickson, Tactics of Mistake