2000 words, specifically. Thanks again, title filter. Even just "Arrays and Tables" would have been better.
I sincerely believe this aspect of the filter is a misfeature. Submissions that have bad reasons to put a number in the title are generally submissions that are just bad (and should be flagged) anyway.
Rather than attempt to autocorrect it should just throw the submission back to the user for reconsideration instead of trying to autocorrect it. "2000 words about" is genuinely not that helpful of a title starter, but I'm not sure the autocorrection is any better.