Multiple interesting things going on here with the use of "Micros✽ft W✽rd".

He's simultaneously: - Voldemorting the phrase to some extent so that it doesn't show up easily or at all in digital search. - He's visually marring the phrase to show active dislike of the software and its general use - By using the symbols, he's effectively turning the word into a form of profanity the way many have used the top row of symbols on typewriters to indicate swear words in the 20th century. Examples: sh@t, dmn, he!!, or any set of four symbols like &%^ to generally indicate a "four letter word" as many profane words typically have four letters.

I feel swear words are the logical conclusion of this line of thinking.