League Law: Support Sightstone Required?

For Riot: "GUIDELINES: This board is all about fostering a healthy community in which discussions can revolve around player behavior systems, in-game suspensions, or boards moderation. This includes topics on how the systems work, insight into why players were punished, and advice to help players improve moving forward." I'm not posting this in gameplay, I'm posting it here. There are only board GUIDELINES, not rules, and this topic even fits the guidelines, as it relates to the bold above. This topic is mainly about how support is to be played with regard to the Summoner's Code. I feel like the way I play support could get me banned, and that others feel the same, and I'm sure other roles with their play style. If you really think I'm wrong here, then please consult with other staff first, and also explain how this topic would be better elsewhere according to the guidelines, which I view as guidelines and not hardcore rules. I shouldn't have to include this whole paragraph, but I see moderation isn't perfect, proper rules and not just guidelines might help. A Rioter can delete this paragraph if this topic won't be deleted and I'll be pleased.

Due to some things I've seen/read and been told, I'm curious what players think and what the official position is regarding some things. This topic is for real discussion supported with reason and the Summoner's Code.

I've probably played the 5v5 S.Rift support role around 1-2% of my games, probably about equal with marksman, so 2-4% of my games bot lane. I get Sightstone on support more than not, but I feel that it delays items which could help more in lane or team fights. With 2-4 Ward Totem wards and 2 Control Wards, I feel I don't need and shouldn't be required to buy Sightstone, before mid-late game at least. Not long ago Riot did shift ward responsibility by limiting wards and adding the ward totems. In my experience, the players who've commanded me or others to buy Sightstone, don't even make efficient use of their own warding capabilities. I feel that many players rely on supports and expect supports to play in a way that makes up for flaws and deficiencies of the other 4 players. I think that all 5 players should make good use of their totem and should buy a Control Ward on their first or second recall. If every player set a DEFENSIVE(way too many players place them where they're destroyed after 30 seconds, mine last 15-45 minutes) Control Ward, and used their totem wards for either offensive vision or more defensive vision, then I feel a support wouldn't NEED to have Sightstone and play as a ward slave. Is this not what Riot intended?

So I'm curious what others think and why they think so.

1. Do you play support?
2. Do you buy Sightstone? How often? How soon?
3. Do you think Sightstone is required as support(no matter what, must buy ASAP)?
4. If yes to required Sightstone, is that also yes for supports who build for damage such as AP Sona/Zyra?
5. Do you think Sightstone is still needed(or better than an alternative support item) if all 4 teammates also have a Control Ward and use totems efficiently?
6. Do you think that regardless of how a support plays or what they buy, that a Sightstone is better at all points in a game?
7. Do you think that no matter what changes ever happen, aside from vision removal, that supports will and should always be ward slaves?

Please regard this as an opportunity to give myself and many others some perspectives of how others view/play support, but this topic is mainly about how support is to be played with regard to the Summoner's Code.