[Skimmertalk] Comment field for skimmer spots with erroneous information?

[Brian Moran]

Last weekend when operating N7PP in the Salmon Run (Washington QSO Party), we noticed that we were being spotted as NPOTA PK01 in the spots that were originating from the various skimmer nodes. Some callers noticed too, and commented about it in their manual re-spot comments like "NOT NPOTA".  I note that some NCDXF Beacon spots say "NCDXF Beaon", but I see that was a feature added to skimmer.

Our CQ message was "CQ SR N7PP N7PP", or sometimes "CQ WAQP N7PP N7PP", if that matters.

spots shown on reversebeacon.net don't show the comment field, apparently, or the information is blank.
spots shown while telnet'ing into ve7cc DOES show the comments field, and NPOTA PK01 was being generated with spots originating from many different skimmers.
In trying to troubleshoot this, I've read the presentations about "reversebeacon network and me", and examined the aggregator documentation; a couple of the information source mentioned in the documentation appear down now, btw. I haven't had any success figuring out where this information comes from. 

Is the skimmer spot comment information originated in the skimmer configuration files, the aggegator information files, or some other location?
How does the information get entered? How can one change it?  Is there a special format message we can use that will set this information if  matched (e.g. a perl-ish regex like CQ (.*) ({CALL}+ ) )  

Thanks,Brian N9ADG