Everyone sticks their foot in it from time to time. If you do this on your own blog, you can edit the post and take it back. You could delete the post too, but it's not looked on very positively. Still, if you leave a comment on some other site, you very often need to live with it. So you better think twice before lambasting your friend for slamming Jethro Tull on his blog.
There's really no reason why community sites shouldn't offer this option. It's good for everyone involved. Three sites, at least that I know of, allow you to edit or even delete your comments. They're the social saints.
On Blogger you can delete comments left on Blogspot blogs, provided that you are logged into their system.
Flickr, Yahoo's photo sharing site, lets you both edit comments left on photos or delete them entirely. Note the small links in next to my comment in the photo below.
Facebook gives you the option to delete comments you leave on Facebook walls, but you can't edit and re-save them.
Most other community sites don't have this capability. YouTube warns of this in their help pages. Yahoo Answers goes half way. You can delete an answer to an open question, not a closed one, but you'll be penalized.
Anyone know of other sites that let people delete their comments? It seems so silly not to enable this.
