I've seen it before, but I don't put a lot of stock into it because it seems quite horribly out of date for a lot of aspects. Like there are forum software which haven't been updated in over 10 years (BttlaxForum for example) and they wouldn't be secure at all to run. (So they really shouldn't even be suggested or considered.) And then there are others which only lead to dead links or archives.
And then forum softwares they have listed are out of date... MyBB is shown to be on version 1.6.3 as it's latest version. IPB is said to be on version 3.1. vBulletin is 4.x... Features and appearances have changed since then.
Nope, I've used most forum software's extensively and I don't need to rely on some antiquated questionnaire results to help me decide what software to use. 😛
No I haven't used it before. I usually read a forum softwares reviews and make my choice that way. Looking at other forums who use the software you are thinking about is a good idea as well.