NetworkSolutions is buggy, big-time. If people knew how insecure they are they would be running from networksolutions...
it is not the first time that they let a domain miss their own expiration cycle. mind you that this practice should be illegal. no registrar should be able to take a domain and auction it, unless under extenuating circumstances, which should be record in their bookkeeping for 3 years.
but lets move on.
PDM.com and GONO.com are just two examples of something gone wrong. in the case of PDM.com my guess is that someone tried to take control of the domain and the domain was put on-hold. the domain should have drop last year but was kept one more year at NetworkSolutions and the administrative contact email was changed to a previous employee who stated that he had no control over the domain name.
then it should be moved to NameJet for auction and easy profiteering but NS is so F#$ incompetent that they let the domain go to redemption period.
DropCatch MO is unfair because they are capitalizing on domainer's backorders to gauge the interest on a domain and then put it to sale on a public auction. but the action of catching the domain by itself is less unfair/ilegal/unethical than place a domain for sale after it has expired, something that is clearly in violation of ICANN rules to nobody's interest, including ICANN itself.
We, as a community, play along with this scam because we get domains that most people don't know how to by this way. But at the expense that these guys are making loads of money with almost no risk and one day they are going to compete with us in catching domains with these profits. In fact they are alreadina doing that, not to mention the portfolios that have been assembled by taking expired domains and not even sell them, wich is completely aggaints ICANN rules for years (for instance, tucows portfolio in yummynames).
back to NS f***ups, they have even move domains for auction at NameJet without warning (making private auctions with almost no bidders) so letting domains drop is no surprise.