Sometimes when I am composing a post in Reply mode I have problems when I backspace (delete). It will make the page jump back to the top of the already tiny composition box. Then I have to scroll through the post to find where I was working. Makes editing a post a real chore. I'm pretty sure that this problem has been mentioned before and was on a list of future fixes. Is this related to the "quantity of data" issue, or something else? Any chance of getting it fixed sooner rather than later?
Related, why is the composition box sometimes small (displays only 4-5 lines) and other times large enough to see ~30 lines? The backspace issue doesn't occur in the large comp. box.