How to detect and prevent spam

I have been faithfully reporting one spam by each author and then ignoring all of the author's posts. I think that is the approved method of dealing with spam.

In the course of ignoring the spammers I have noticed that 99% of them are females from New York, either 23 or 24 years old. This appears to be shorthand for "I am a spammer". I propose you take them at their word and make all posts by 23 or 24 year old female New Yorkers invisible until approved.

(It also implies that a single spammer is responsible for 99% of the spam on PriusChat. There are not tons of spammers, there is a single, very persistent spammer)

<--- not female, not from NY, not 23.