A sample size of a few hundred is more than enough for a 5% margin-of-error and a confidence level of 95%. ~384 is the number that pops up for
all populations greater than 100,000 people. A margin-of-error of 10% only requires a sample size of ~100.
And given that >72% (72% "explicit dislike" + some fraction of the 26% "unclear") of forum respondents actively dislike the chain mechanic, even a 10% margin-of-error still results in the conclusion that most people actively dislike the chain mechanic at a >3-sigma level. But we have a couple hundred respondents, so we're even more sure than that.
EDIT: I suppose it's a 2(2.5?)-sigma at most because of the 95% CI.
https://www.qualtrics.com/experience-management/research/determine-sample-size/https://tools4dev.org/resources/how-to-choose-a-sample-size/https://www.checkmarket.com/sample-size-calculator/
