This is the kind of post that reads as pure BS.
What people are saying is that if you're actually trying to make your pressure vote most effective, don't immediately let on that is what it is. There comes a point to explain to village it was a pressure vote if that is what you're thinking, but that point isn't usually at the very moment you place it.
Also it doesn't make sense to me to pressure a player that has no history of purposefully lurking as a wolf, or being a lowposter, but does occasionally not show up to a game. The placement on Stagg, and the way you did, had all the makings of a nothing vote. That nothing, if you're wolf, can get you caught for trying to do nothing, which fake hunting wolves try to do a lot of. If you're village, then doing a nothing vote doesn't help you or anybody.
I don't say this to hurt you. If you are wolf or villager either way you can learn from this.