You've already edited out the mentions of your emails. Unfortunately, that's as good as us removing the threads will be. Once a search engine (particularly Google) has a page, it doesn't easily lose it. Their cache will always have that email in it, although as Google recrawls those threads it will take out mention of your email from default searches.
These are the dangers of putting your email in a public location. Once out, there's no way to fully contain the problem. What you've done, removing the email from the posts, is the only good option.