This is the trickiest use of FUD because it's hard to identify what exactly is going on. For example: ``Also, there isn't one version of Linux there are many, and until everybody settles on the exact same version globally I wouldn't touch it with a long stick.'' (http://www.21store.co.uk/pdantic/). This is actually a combination of two different types of FUD:
The spin comes in where it is implied that being able to buy a Linux from multiple vendors is a weakness rather than a strength. This spin works because of the combination of market misdirection (people are not accustomed to thinking of operating systems as a commodity product) and past history with proprietary systems, where all proprietary systems are incompatible with each other and there is only one winner (implying that the person who chooses the wrong proprietary system will be the loser). Thus a strength (Linux is available from multiple vendors, and if you don't like your current vendor you can switch to a different one) is spun as being a weakness.