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Also forgetting the subjectivity of taste - what tastes good to someone isn't what tastes good to someone else. I know plenty of people who like their coffee burnt because that's what they think good coffee is; if I serve them a good espresso and they don't like it, the next time for sure I'll leave the machine on for 5 more seconds and use the close-to-charcoal beans I've had sitting around for two months if they would enjoy that. Follow the various rules to get a rough starting point, but more importantly understand what each of them achieves, then tinker around to find what works best for your tastes. I don't do WDT not because I think it doesn't work, but because my grinder doesn't clump too much, my palate is not sophisticated enough to tell the difference and I cannot be bothered..
I mean, I doubt I'd have got to where I did this morning without having seen a fair few videos/sought advice on here. But was surprised what is supposed to deliver a shit coffee did precisely the opposite.
As a novice, it's natural to follow a fair bit of information online and think it's gospel. With experience, you obviously learn what you can/can't get away with.