Everyone can choose not to look at them. People love having everything laid out in front of them before they even do anything. There are almost no guilds aside the ones that test on the PTS that do not look up a guide.
If those guilds couldn't get onto the PTS, they'd probably look up a strat. If you can find a guild that suits your playstyle where you figure everything out on your own, fantastic. But my guild and I don't like wasting time and trying to reinvent the wheel when it's already laid out before us.