Regardless, "Stratitis" would more accurately be described as "I left my Strat out in the rain, it got wet and started to warp and crack". The condition being discussed here should be "Stratosis" if anything, but good luck changing the internet's mind.
Even worse, when I looked it up at least, there seems to be a pretty even split between Stratitis describing problems with your Strat and describing a burning need to buy a Strat.
Short answer: People suck at language.