One thing I worry about is accidentally catching legit emails. I don't think I ever get legit emails that have the word "email list" in them, but I'm not sure! I'm also not sure how to best use gmail's logic to make a filter that applies to email with (1 or 2 or 3) and (4 or 5 or 6).
Any suggestions for how to do this? I wish the gmail filter got smarter and realized that I always junk emails that have certain types of content, and which are not from my previous recipients.