Ive seen this at a few sites, where underneatht he comments textarea there is a link to increase and decrease the size of the box? I'm just wondering how you do that.
PS. I usually just search for this, but havn't gotten any irrelevent results after around 5 different searches.
I found an answer with a google search :), but it isn't specific to wordpress. Works with all text boxes
(Comment textarea: <span style="cursor: pointer;" onclick="document.getElementById('comment').rows += 5;" title="Click to enlarge the comments textarea">Increase size</span> | <span style="cursor: pointer;" onclick="document.getElementById('comment').rows -= 5;" title="Click to decrease the comments textarea">Decrease size</span>
In fact, that method isn't too semantically correct... You can read more about that in my post regarding textarea resizer JavaScripts.