Everyone realizes that this is a joke article, right? Although it would be interesting to actually do a study as described in the article.
Once again speaking as the resident grammar Nazi, I would like to note that I personally don’t tend to make a big deal about grammatical errors unless they are found in something of an official nature (largely anything in print) or if they result in confusion of the meaning of the grammatically botched statement.
Furthermore, it is questionable whether it is wrong to ever split an infinitive, and realistically there is no real rule stating that prepositions are something one cannot end a sentence with. Interestingly, despite my ability to be lax concerning grammar, I take usage of the non-existent two-space rule very seriously; it’s more offensive than using Comic Sans.
Perhaps I’ll return to this thread later with some useful tips for things to avoid in order to not rustle the jimmies of your grammar Nazi friends (or pepper your writing with if you’re looking to be a grammar troll of some sort; I sort of miss Sweatie Killer’s ongoing deliberate misuse of your/you’re).