Am I the only support that likes to go without sightstone?
this attached picture happened just recently. I never bought sightstone, but I did buy wards and upgraded trinket asap. Upgraded warding trinket gave me all the wards I needed, max wards out for me all the time. I never needed a pink ward really, but I probably should have bought some. regardless, I guess my point is sightstone is not absolutely necessary for a support.
Downvote me all you want folks, I'll still play this way.
EDIT: to remedy confusion on "support items where" I had frost queen's claim before rylais, which I sold for a blasting wand and got ardent censer to counteract the massive amounts of CC on the enemy team(black shield + 40% CDR)

to clear enemy wards (which is just as important as maintaining your own) so you usually should take sightstone.
, 1 person has
, and the support has