That's really not a poll. And if it was, it wouldn't belong here.
Many people here play on simulators primarily. On simulators, Pokemon can be automatically set to have perfect IVs, so it's a moot point. The analyses are written with this in mind, and always assume ideal IVs. Those aren't necessarily 31 IVs in each stat; just the best possible IVs with that Pokemon attempting to fulfill the goals of that set. Which for the most part means some IVs are assumed to be 30 rather than 31 for the purposes of Hidden Power, and that's acknowledged in the analysis.
As for the actual sets, the official analyses are supposed to keep up-to-date with the best current sets, whether through specifically listing the sets or mentioning alternative options separately. However, sets tend to not get put on the analysis page until people are actually using them to demonstrate their effectiveness, so people have to use unofficial sets for them to become official. The sets tend to be a good starting place, but any good player knows when to deviate from them.
To start a new thread, click on the "New Thread" button. On the thread index, it's right above the Announcements.