Starting early this year, Crunchbase had made a huge push to encourage developers to build application with their data.

‘The CB team is going to be regularly featuring guest posts from any developer who has done something smart and useful with the data, provided that: -Your application is publicly accessible -Your application attributes CrunchBase according to the CrunchBase API TOS -Your application directs users to CrunchBase to update missing or out-dated information’

People+ complied with all their requirements (especially with the attribution) but it didn't help