Our in-house replacement system is "NLS" for the nameless Linking System. (Definitely not New, Next, or Nagai Linking System.) One person refers to it as the Namaste Linking System.
Acronyms are vitally important. To me.
I always got the impression that very few customers purchased DLM and even fewer deployed it and still fewer deployed it in production. It is too bad that it rolled out right before the acquisition. It never got the attention it deserved ... and truly required. It was not a product that would sell itself. I can't say it would have succeeded otherwise, but it sure would have had more of a chance.
I like the naming convention you have adopted. Maybe ours should be YALM (yet another link manager)? 🙂
I think the problem with DLM is the concept was good but the execution was a little flawed. The customer I was referring to had to implement (extensive) customisations to the registration process and UI components of DLM. Even after all that they still experience limitations and barely acceptable performance characteristics. Perhaps like you say poor old DCAM DLM never truly got the attention it deserved.
I'm interested to hear of other's experiences with DLM or how they handle cross-referencing and link validation across large sets of XML/SGML content.