For months now(maybe more than a year) .biz renewals are a nightmare.
Everytime I try to renew .biz domains crazy things happen:
Half the domains are renewed.
Those renewed sometimes get out of sync with the registry.
Those NOT renewed sometimes get out of sync with the registry.

So everytime I renew them I have to check every one in the .biz whois and then cross reference it with the moniker control panel. Then I have to file a support ticket and wait for 7-10 days. Then moniker will blame the .biz registry and MAYBE fix my issues.

It's strange that I don't have ANY problems with GoDaddy and other registrars.
Or maybe it's not that strange.