I have no idea whats in the DMOZ category you mentioned as its not in my field, so I dont know the quality of sites in there.
However, Im being honest here, while your site is good, its average.
Its very commercial. Dmoz does list commerial sites but has to be good content to.
On your site I clicked game guides, then went to the Baccarat page
Baccarat – Online Casinos – Play Online Casino Games at HyperCasinos.com
Shows to me as one big block of text. Not great content.
Assuming the rest of site is similar quality, then there are plenty of better sites out there which would deserve a listing before yours.
Just my honest opinion.
BY the way, please answer, what effect has the delisting had on your traffic, SE rankings?