I’m emphasising what I’m disagreeing with, that a certain default causes dislike of things that are not the default.
Are the default stones and themes likely to cause dislike for all of the other themes?
It’s not the same as with Go rules, true, since it’s much simpler.
When you introduce people to multiple rulesets it also tends to cause confusion, until people are committed to playing long enough, that they can decide what they prefer. I wouldn’t say exposure like that would help.
But I also wouldn’t confuse “learned to play with X rules” with “likes rules X and hence dislikes rules Y”. The hence is important, since again, with the handicap comparison, I’m not really believing that a certain default is causing dislike for the alternative.
Japanese rules and scoring are very practical, especially for 19x19 games.
But they have some drawbacks, like not being able to resolve life and death during the game without losing points.
Preferring to play Chinese rules online is also different to preferring to play them in person. When the computer or app is doing all the counting for you, and most games don’t really make any difference whether they’re being played with either ruleset, it’s probably as likely to be
as “it’s just what I learned with”.
People can prefer one ruleset for aesthetic reasons, New Zealand rules allow suicide moves, counting both stones and territory (area) is more natural etc.
I would expect the high level reasons to be why you would dislike an alternative, unless of course you just tend to dislike anything that isn’t just the way you learned originally (“you” being a generic player who is learning Go for the first time).