I have noticed that many people can't seem to locate the restaurants people are referring to. Perhaps I can be of some help.
For the last way too many years I have been haphazardly maintaining my own database of restaurants in the L.A./Orange County area.
While it contains over 1800 entries, be assured that many of them are no longer around. However, at the very least, it might provide a useful address or phone number to one who doesn't know what is being referred to in a current post.
Please feel free to email me at firstname.lastname@example.org and I will be happy to email it to you. I'm sure some will find it of value.