Being able to edit out the mistakes in our posts for spelling and grammar mistakes is tempting, but it opens the way to the kind of unethical stuff that politicians do in Hansard,and no doubt in the equivalent official records in other countries, when they've made a fool of themselves.

I think it's better for us to try to take care what we write, and accept that what we have written is there to stay. If we say something we regret, we should come back and clarify it, or apologise for it, or whatever is appropriate.

Spellchecking is built into Firefox, and probably other browsers. (It does tend to see English spellings as misspellings, but it accepts corrections on that score easily enough, adding the more traditional spelling to its dictionary.)

As for pictures, I recommend using Flickr to store the pictures, and write in a link here using minimal HTML code, so people can click on it and see the picture in question. Posting pictures here would mess things up and less convenient to use the site.

Keep it simple is a good principle.