Shalom Rabbi. I have been finding some contradictions on the site, answers from different years that conflict. Here are four, each with the quotes and links. Which should be followed in each case?

1. On https://kashrut.org/kitniyot-species/#comment-2509 the answer says “Rice, millet, mustard seed, oats, beans, and the like are the original Kitniyot.” On https://kashrut.org/are-oats-considered-kitniyot/#comment-5014 the answer says “No. Oats are not Kitniyot.” Which one is correct for an Ashkenazi on Pesach, and should the older answer be updated so people are not confused?

2. On https://kashrut.org/dishwasher/#comment-178 the answer says “Dishwasher is not sufficient to kasher other items.” On https://kashrut.org/koshering-via-dishwasher/#comment-5228 the answer says “Kashering a pot in a dishwasher is a possibility. I’m reviewing that now.” Was there a conclusion on kashering a pot in a dishwasher, and does the older answer still stand?

3. On https://kashrut.org/eating-italian/ the guide says “Avoid rice and cooked or mashed potatoes.” On https://kashrut.org/bishul-akum-regarding-rice-and-pasta/#comment-5445 the answer says “Rice is more complicated because it is not considered Pat. However, in hotels, catered events, and similar settings, there are still grounds for leniency.” Does that leniency also apply to rice in a non kosher restaurant, or does the guide still hold for restaurants?

4. On https://kashrut.org/tovel-new-dishes-glassware-pot-pans/#comment-436 the answer says to sell new utensils “to a non-jewish person like a housekeeper or a coworker for $1. And then just Have them leave it in your house.” On https://kashrut.org/dvar-charif/#comment-4579 the answer says “all of the great authorities agree that tevilat keilim is min haTorah.” If tevila is min haTorah, how does the $1 sale work when the utensils stay in the Jewish home and are used every day?

Thank you for all the clarity you give.