No no no... You guys are reading the reviews wrong. Basically it comes with a mount bracket that you can optionally use with an Intel board. This bracket allows you to be able to install the heatsink without needing to remove your motherboard. The downside of this is that you will be limited to 80mm fans if you use the bracket. If you want to use a 92mm fan, you will need to use the spring screws that come with the heatsink and will also need to remove the motherboard so you can properly install them (as you need access to the backside of the motherboard).
Basically, if you don't need to use a 92mm fan, you have the option with an Intel board to not have to remove the motherboard to install the heatsink, but if you want the 92mm fan (or use an AMD chip) you will have to remove your motherboard to install it.