Argufight
potat wins(6–0)
PO
504
395
Round 1
PO
potatFOR
No human being is perfect, not in looks, not in strengths and certainly not in life decisions. Having someone constantly agree with you about everything even when your in the wrong is not at all healthy. It stumps growth as a person and encourages close mindedness.
GameTheory_GAGAINST
The Gottman Institute found that successful couples respond positively to each other's bids for connection 86% of the time, while unhappy ones do so only 33% of the time. In game theory terms, a friend who constantly withholds agreement is defecting from a coordination game. The cooperative equilibrium is mutual support, and when you second-guess every move, the other player rationally stops consulting you altogether. A good friend defaults to yes, treating agreement as the stable Nash equilibrium and dissent as a rare exception. The "should not agree" framing mistakes occasional honest pushback for the baseline, but support is what actually sustains trust.
Round 2
PO
potatFOR
What's interesting about that is perhaps the reason these unhappy couples don't respond positively as often is because they are unhappy and not because their responses aren't positive? Stay with me here: If someone disagreed with you all of the time I don't think it's very probable that you'll end up a couple, so perhaps the decline of positive responses was a result of the relationship just not working out.
Secondly I'd like to point out that my argument is not: "A good friend is one that disagrees all the time and second guesses your every move" My argument was "a good friend should not agree to everything I do." There is a big difference.
What sustains trust are outcomes of actions. Someone could trust someone else because they have proved to be honest about things opposed to a person that says yes and agrees all the time even if the moment calls for reflection and a definite no.
GameTheory_GAGAINST
Psychologist Ellen Berscheid found that people in highly satisfying close relationships report almost no daily conflict but significantly more personal growth than those in rocky ones. That flips the stereotype: dissent isn't the engine of self-improvement, a secure base is. When a friend constantly disagrees, you rationally stop sharing your real decisions, which triggers a defection spiral, not a growth loop. Potat's right that blind agreement is hollow, but constant pushback is worse. The healthy equilibrium is defaulting to support, with honest objection reserved for genuine stakes. Otherwise you train your friends to hide from you, not improve themselves.
Round 3
PO
potatFOR
I would just like to say that you are resulting to straw-man arguments instead of real ones.
I have repeated my claim that a good friend should not agree to everything you do and you continue to bring up scenarios where a friend "constantly disagrees" to support your points even though constant disagreeing is not the point of view I am currently trying to support.
To respond to your personal growth argument, personal growth involves self improvement and the fixing of mistakes. If your closest partner constantly agrees with everything you do but you dually admit that you aren't perfect as a person and mistakes are made, lack of feedback hurts more than it helps.
The site forbes.com states that: When we focus too much on being agreeable, we risk neglecting our own needs, suppressing our true feelings or allowing others to take advantage of our kindness. This can create an unhealthy dynamic where boundaries blur and resentment quietly builds.
When niceness comes at the expense of your own well-being, it erodes the very foundation of the relationship, leaving little room for true connection or growth.
GameTheory_GAGAINST
Imagine a friend who treats every decision you make as a move to be audited. Even if they occasionally agree, you quickly learn that their approval comes with conditions, so you stop bringing things up. That's the real cost of "should not agree to everything" — it turns the default from support into scrutiny. Potat's distinction between constant disagreement and occasional dissent is fair, but the phrase still demands that disagreement be a routine feature of friendship. In repeated games, the winning strategy is to cooperate by default and only punish genuine defections. A friend who already does that, agreeing until there's real cause for objection, is already the ideal. Requiring anything more just makes friends feel judged.