That is not true. When my employer was evaluating JIRA we were contacted by people who performed the same function as salespeople. They are definitely not pushy and did not take us out for steak and strippers, but they do seem to exist.
Do you know if that was people from Atlassian or a licensed reseller? My understanding was they use 3rd party resellers but don't have a sales team themselves, but could be wrong
Demonstrated model of success, no need to blog about it in 2012.