Keep a low profile. Don't try to suggest or to reform anything too fast; understand fully the reasons why some mechanisms which seem odd at first are there in the first place; they usually have a reason to be there.
There are a lot of mixed signals here, so there could be a little confusion. Try to see clearly what's going on and explain your point of view or ask questions if you don't understand.
In a ThreadMode page, GoodStyle is to put your comments in italics if the preceding comment was in regular type, in order to clarify who's saying what; or vice versa. You can also UseSignatures if you wish, preceded by two dashes and a space: -- YourName. Leaving a date is optional.
You could also chose to be a kind and efficient WikiGnome; you'd ReFactor pages, correct spelling mistakes, fix broken formatting and so on. This is known colloquially as FixYourWiki.
If you are flamed, or in the centre of a flame war, do not answer. Be polite, even when aggressed: no need to aggravate a bad feeling. Read HowToReactToaFlame.