I'm heartbroken that the Tips have been removed. I understand your concerns, but would have preferred to have seen some sort of oversight rather than total removal.
I believe the decision was a step backward. A large component of your brand promise, and of a vibrant online community in general, is the ability to post various content. By removing this modest posting resource you have diluted your brand promise and taken away something significant that makes your site unique.
The Biznik Manifesto says, "if you've got business to give, go for it." So, why was it so bad that some Tips offered links directly to people's sites, and acted as pseudo ads? Isn't that in keeping with the Manifesto and "going for it"? Biznik profiles provide access to live web site links. Why was it so bad then to provide a link right in a Tip? Isn't the Biznik philosophy to share info and connect, in the hope of growing and expanding business?
I appreciated the one or two sentence nature of the Tips, when they were useful, just as I appreciate the greater depth of articles, when they are useful.
In the end, I still love the site, but I'll miss the Tips. :(