When “apostrophiser, n. one who inserts or removes apostrophes”, appears in the OED, this thread title will be one of the first written citations.
I wish it were so, Eliza, but the word in both the spelling with s and that with z has been around a long time. In fact the story of the apostrophizer appeared in a Birmingham Metro News story from 2004. The story has unfortunately vanished from its archive and if I try to link to the search result (in which the snippet printed below appears) it simply takes you to the generic Google page. The only way of getting to the snippet is to search for ‘apostrophiser’ and then go to Tools/Any time/Custom range and narrow the search parameters to a specific date range. If you use the range I used (26 Mar 1990 - 26 Feb 2010) the Birmingham Metro News should be the top result and you’ll see the snippet referred to. I think this is probably the same fellow as he talks in some stories of having been active for years.
6 Dec 2004 - Birmingham | Metro News ‘Grammar vigilante’ secretly corrects bad punctuation in the dead of night. He uses a tool called the ‘Apostrophiser’
There are several results too for apostrophizer albeit in a different sense, the earliest being one from 1996, a PDF of an article by MJ Hernáez Lerena the link to which leads to ‘Resource not found’. Once again you need to repeat the process above in order to see this Google snippet.
In these stories, she becomes an “apostrophizer”, or in Culler’s words, an “agent of rescue” of forms and forces she desires to see again.