Most of the uses can be also accomplished with a heavy gauze pad in the same size. If you need them or carry them for their original use then it is good to have an idea of what else you can use them for.
I grew up with older sisters, both parents and no brothers. We were a very active family and I have seen them used for a great number of things. Most of which were detailed in that article.
If you don't already carry them, it isn't a bad idea to. In my tiny emergency kit I do not have any. There is no room, and they bring nothing to the table for me that something else in the kit can't already handle. However, in both my medium sized and large kits I have several of them (pads too in the large one). They are there for a many of uses, but because of the size and completeness of those kits, they rarely see use other than their original purpose (except maybe to stop a nose bleed). Un-lubed condoms, however, are a different story.