1.] The Merit System - big changes to the ranking system which still has people divided
and still generates a lot of discussion. There is generally a Love/Hate relationship with Merit.
Merit system changed the forum a lot, by its design and purpose, to help the forum better in quality. There are some changes in merit system since its kick-off too.
2.] Mixer Ban - this was a massive announcement recently which stirred up a lot of discussion
on the removal of Mixer service adverts and the restriction of posting links to services etc.
There is still grey area in the ban but if theymos sees it, he will ban anything that he considers as risk for the forum and himself because of existing or potential regulation in the USA. It's hard to say it is right or wrong but with his position, I understand why he decided to do that even in many years, theymos supports freedom.