Yesterday I was about to post the following as a question, but while typing I realized that *automatic* removal of associated accounts might also delete valuable content or might be problematic for hacked accounts, and hence be a bad idea. Or is it?

A spam account was [deleted from Stack Overflow](http://stackoverflow.com/users/1383309/swilsonmcss) (at least 5 [spam post](http://stackoverflow.com/questions/6525041/how-to-screen-scrape-an-ajax-site-in-java/10543453#10543453)s), <!-- Screen capture: https://i.sstatic.net/ZhI8G.png --> while its associated account on Super User was involved in the same spamming too (at least one [spam post](http://superuser.com/questions/91860/spider-a-website-with-variations-in-the-post-parameters/425371#425371), but also [a nice non-spam answer](http://superuser.com/questions/403865/web-crawler-scan-and-map-website-and-log-all-links-that-have-particular-strin/425365#425365)). 

Some time later, the Super User moderators also deleted the spam, [and warned](https://i.sstatic.net/PYHvE.png):

> If you spam this product again, you will be suspended.

That's fine with me, but still just curious: would it make life easier for moderators to automatically delete associated accounts (and their content), if an account is deleted for spamming on one site? 

(That would also remove [any subscriptions](http://stackexchange.com/users/1471979/user185364?tab=subscriptions) such spammer might have configured to find future spammable posts, but I guess such subscriptions could also be maintained using a puppet, so not a lot we can do there. Also note that this specific user has associated a new SE account to their remaining other accounts. But I don't think that having a few "old" associated accounts would fool other users into giving a spammer the benefit of the doubt if spamming again.)