Judging by the page displays and the featureless forums I would guess that the site owners main objective is simplicity and fast page loads. I agree however that your suggestion would be a nice feature.
If you are interested in displaying your own annotated games on the web I have a few suggestions. You could find a decent free webhost or a reasonably priced (1and1.com is cheap) paid host and put up your annotated games. I have used the following for page generation and they both work well:
Just noticed that the 1and1 'home' package has 10 ftp accounts at $5 a month. If you could get nine other people interested thats six bucks a year per.