That "recommendation" was by a spammer pushing services for their web services in that one, and a lot of other topics. The link to download MacKeeper was on their site, not Apple's. Post was removed for at least a couple of forum rule violations. In short, Apple had nothing to do with any such recommendation.
I never said Apple did make a recommendation. I simply stated that in one of these e-mail updates there was a claim being made that it did, which in turn was followed by a ton of refutals, some got nasty, then it stopped. I think the following from the previous post by ThomasB2010 is likely fact:
As an FYI, Apple doesn't "recommend" any third party products to anyone to the best of my knowledge unless they explicitly have a contract of some type with them. In my opinion they don't want to be held liable for anything associated with anything they have no control over, and they don't want to be accused of showing favoritism to one vendor over another. They could get sued for doing that. This is common in business.