Post first half, then edit? Just a guess.
- post first half
- fumble around trying to find the link
- get despearate because my comment only shows an /edit link
- find another link from someone else, paste that in
- change the /item?id=<n> to the id of my /edit?id=<n> comment
- save the change
- follow the link
- follow the link a few more times
- relax.