[bmelton]

It struck me as someone who was earnestly trying to appear more educated than they are, or someone who'd recently (re)read "A Confederacy of Dunces".

That said, the thought occurred to me that it might be someone aware of how easily one would otherwise be able to match up their linguistic patterns and identify them to another online persona, and that perhaps they were actively trying to combat that.

The former scenarios are completely contrary to the former, and it shouldn't be forgotten that this is all very recent, and not something that concluded years, months, weeks, or even days ago, so it's possible we haven't seen the last of it.