Related: Women apologise more because they have lower thresholds for what constitutes possible offense

First off, I'm not sure I agree with your argument that it's easier for you to be polite because you find it to be an interesting puzzle. There are many things that I find interesting or rewarding but that I often don't have sufficient patience to do all the time - eg. certain types of maths problems, linguistic translation puzzles (where you get a bunch of phrases and translations and need to tease apart the meanings of the words and affixes), and really challenging computer games. Politeness falls into the same category of interestingness, but because it's usually mandatory it's a bit like having to complete a captcha every time I open my mouth - I know why it's there, it's not that onerous most of the time, but all the same I would prefer not to have to do it.

Hmm, there's a lot more rambly stuff I've been thinking about on the topic but I'm not sure how well it relates to our main discussion. Anyway, relevant bits: I've done enough reading and observed and participated in enough interactions to have a good idea of how to gauge politeness levels and how to achieve them (which is to say, I'm neurotypical and have average or above-average levels of empathy. I'm just lacking several years of socialisation experience to make it automatic). I think that most of the time I succeed in saying nice things and not saying offensive things. But it still feels like a lot of effort. I wouldn't expect someone to go to that level of effort for me and in fact find it annoying and tedious to endure thanking-for-thanking, long buildups to requests, apologising for things which are clearly not the other persons' fault, and other highly 'polite' behaviour. How much have you considered the level of politeness you prefer to receive as opposed to the potentially interesting/fun problem of working out what to transmit?