Whether it's R. Scott Perry or GoDaddy's PR flack who're confusing DNS with WHOIS data, I'm not sure.
I've encountered throttle limits on WHOIS queries from numerous registrars, going back years. In the normal course of events, it's not necessary to query WHOIS a whole lot, but some legitimate uses (spam and other forms of abuse fighting, for example) are ... expediated somewhat by access to, say, contact information for a given network.
Some years ago I investigated caching whois clients and found jwhois to be reasonably good (it presumes information about whois servers which isn't always accurate) and both greatly speeds up response times and reduces repeat requests for a given entity.
Whether it's R. Scott Perry or GoDaddy's PR flack who're confusing DNS with WHOIS data, I'm not sure.
I've encountered throttle limits on WHOIS queries from numerous registrars, going back years. In the normal course of events, it's not necessary to query WHOIS a whole lot, but some legitimate uses (spam and other forms of abuse fighting, for example) are ... expediated somewhat by access to, say, contact information for a given network.
Some years ago I investigated caching whois clients and found jwhois to be reasonably good (it presumes information about whois servers which isn't always accurate) and both greatly speeds up response times and reduces repeat requests for a given entity.