In my experience with Sailor Moon, it is for the best you read the source for yourself, wikimoon and oracle often present things as black and white fact when its not or else get details completely wrong. In fact I would blame wikimoon for much of the reason many fans misunderstand some aspects of Sailor Moon since its most people's go-to.
I am not 100% I would have to reread but from what I remember, Sailor Moon did not "destroy" Chaos but whatever happened, The Chaos Seed was forced into the Cauldron which effectively destroyed its power, there is a possibility it would be reborn like everything else, but it is the power of Chaos that has been defeated. Sailor Moon attempted to embrace everyone and everything. She wanted to take Chaos into herself because she understood that Chaos was like everyone else in her life, simply lonely. Usagi does not believe the Cauldron can be destroyed and she would never try to do so anyway, Usagi wanted the Sailor Crystals to use their powers of rebirth to renew and refresh all again. It is because Usagi has not given up her hope and faith in love and kindness, unlike Galaxia and Chibichibi who had been disillusioned.
In other versions of the series, Chaos takes possession of Galaxia and causes her to go cray-cray (Anime, Sailor Stars) (to return Chaos into the minds of people) or the Sailor Soldiers destroy the particular form of Chaos (Kyaos or formless) present at the Galaxy Cauldron (Eien Densetsu, Shin Densetsu Kourin, Kakyuuouhi Kourin) to return peace and balance and refresh their love and friendship.
Can anyone back me up im not 100% on this =\ its been a while since I read it. I can only speak for the other versions of Stars entirely...
(be careful with Kyra's link, fantranslations often have a few more translation errors than the official, though the official is more likely to have a stilted translation. Sadly no one seems to be able to balance it)