Why are most clients open source and the back-end closed source?
Mollom is built around an open API, making it possible to implement it in a large number of CMSes and web services. We strongly believe in open source and have made several open source clients available. Our back-end technology, however, will remain closed source. Giving away the intelligence we need to detect spam, generate rock-solid CAPTCHAs and figure out the quality of your content could be turned against us and defeat our purpose. The code could be used to create malicious, unblockable content.
