In my experience, precommitments are extremely dangerous to use in games in general.
They're seen as somewhat rude - you're doing something that will make you lose "just for spite". Even if you're clearly justified, people still think things like "it's just a game! she's taking it way too seriously!" or "wow, the point is to win, why would you just suicide yourself just to mess things up for someone?" This is especially the case if you're only playing a few games in a row, so the reason for acting vengeful is less salient. In addition, aside from reputational damage, there's also a serious risk of starting a tit-for-tat. Humans can be pretty vengeful, and believe that they're almost always in the right, so if you precommit to attacking someone, they might say something like "well, okay, then I precommit to attacking you back if you execute that attack" - and they might follow through on it too. And then you both lose in a spiral of negativity as everyone else looks on in bemusement.
Well, this is mostly based on online games, though, maybe it's a little better in real life.
A more efficient nuke would be to threaten to ensure the demise of the defector for this game, and the next. To avoid the spiral of hate going supercritical, you can also tell upfront (and in public) that any retaliation will not be met with further vengeance.
...Alice: so, we don't attack each other for the next 4 rounds.
Bob: okay
Alice: Oh, and if you break your promise, I swear I will do my best to make you lose this game, and the next
Bob: hey, it's not cool! If you mess up with me on the next game, I will mess up with you on the second next!
Alice: retalia
The Game of Thrones board game is similar to Diplomacy (so I hear: I've never actually played Diplomacy). You often need to make alliances to survive, but these alliances are weak. It is both expected and required that you will eventually break your alliances, otherwise you will lose. My first time playing this game, I made an alliance with a neighboring House which turned out to be unwise, and severely limited my options. To me, breaking an alliance to win a game (even if it was socially acceptable) didn’t feel right/wasn’t worth the negative feelings, and so I ended up stuck on my island for the whole of the game.
Instead of adapting by learning to be ok breaking alliances, which I considered to be a sub-optimal solution, I fixed the problem by targeting my alliance terms. Now, instead of a general alliance, my offers were along the lines of “I won’t attack you across this border for the next four rounds, if you agree to the same.”
This had the effect of actually strengthening my alliances. Limiting the terms of the alliance to something that could easily be complied with, meant that defecting was no longer expected. The cost goes down, and the benefits go up. In the previous game, both I and my ally would’ve had to leave our mutual border semi-defended, because we knew the alliance wouldn’t hold against a strong enough temptation of conquest. This was facilitated by the fact that the alliance was expected to be eventually broken. In the targeted alliance, I and my ally can leave our mutual border undefended, since we can expect the alliance to hold. This is facilitated by the fact that there would be social sanctions against breaking the alliance. (e.g. I wouldn’t form alliances with that person in future games, because I knew they would break them.)
This lead me to the thought that prohibitions seem to focus on three axes:
General Examples:
It seems to me that making an injunction specific and targeted increases the expectation of compliance. This is important to me, because I seem to dislike injunctions that I am expected to fudge.
Another example of how this plays out in my life: Being enmeshed in a poly network, there is a lot of talking about people (not necessarily in a bad way-- if you ask me about my day though, my answer is going to involve other people). To get around worrying about if I am ever breaking confidence, I specifically tell people I am close to that I don’t consider any information to be private unless it is specifically stated as so (this goes two ways). This way, I get to "gossip" but also people know they can strongly trust me with any information that is prefaced with "This is not for public consumption..." In this example, like the board game, I am turning a broad, vague injuction that isn't strongly expected to be followed ("don't ever talk about other people") into an injuction that can be trusted to be followed by making it specific and targeted.
Relevant to previous discussions on: ask v guess cultures, and the idea that if it's expected that everyone breaks a specific law then the government can arrest anyone they want to