Spam: Help build a wiki page

I’ve just updated what I can find on a brief trawl through here:
https://www.tamba2.org.uk/wordpress/spam/
Despite the fact that I seem to live in this place, I can’t find all the information, so if you will email me anything you find, or see in your travels that is proven to work with WP, I’ll add it to this page.
Pretty much all my work on that site is in the new wiki, and I’ll transfer the information there too.
There is an argument that says putting all the anti-spam methods in one place gives the spammers somewhere to study, but equally there is a call here for something more central.
There never will be just be a ‘one size fits all’ approach because this is a long fight with changing boundaries, but if it’s something you think will help, I’ll compile it all.
Just send me an email with a link to where the code is, and I’ll link it from the page above and subsequently the wiki page.
Please don’t send your own code unless it has been tested by others, and if you do do that, please make it clear where the code should go.
So, you send me links, and together we build a page ? Yes ?
Email: tamba2 at gmail dot com