As English is not my first language, I make a lot of spelling, grammar and phrasing errors. Thankfully, some people are kind enough to edit my post to correct those mistakes. (Yes, Dori, Grace note, and aarobot (along others), I'm talking of you.)
There should be a way for the original author of a post to thank those editors that correct our text, rewarding them with at least one point or more. This duty is essential to the Stack Exchange websites.