Slanking means not playing up to your full potential.
Low-Posting means not meeting (or barely meeting) the minimum posting requirement.
This guide is about slanking without low-posting. Good slanking is making substantive posts with limited time.
Well, we don't have a slanking guide, but if he had one, what would be in it?
Why slank at all?
Sometimes, you find yourself in a situation where you have very little time to expend on a mafia. You might be multitabling and have underestimated the effort required for one important game, so you have to dial down the others; or something came up in RL and you have to phone it in for a while; or you're simply overwhelmed by a game, but don't want to let the everyone down and sub out. If you need to play to the minimum requirements, what's the best way to do it?
You could, of course, start $#@!posting. The problem with that is that it makes the game worse for everyone else. Let's assume we accept that our own game experience isn't going to be the best, but we don't want to ruin it for everyone else. So another perspective for this guide that doesn't exist would be, if you have a low-posting player in your game, and you accept that they can't step up their activity, what do you want them to do or avoid?
Subbing out is always unpleasant because a big part of mafia is reading other players, and that means getting to know them, and if you sub out, everyone else needs to get to know someone new, and the sub-in has missed out on the get-to-know phase and faces a dificult start. Game strategies may hinge on player personalities, so subbing out may ruin some other players' carefully laid plans, which is no fun at all. Ruining other people's plans should happen through gameplay, not subbing! It's usually preferable to keep playing with low effort, rather than to be replaced. Your host will certainly enjoy it more.
And maybe the guide should have a special section for mashes, too.