Great news!
It would be nice to have built-in option to trim post content in notification emails. Firstly, it would be better for community, because if someone have to click link to read the content there is much bigger chance that he will reply in this topic (because he is reading post on forum not in mail). What's more, currently the mail with notification about really long post look awful (especially when there is some program listing in post content ex. on forum for programmers).
