If you're going to risk overextending with no vision

You don't get to tell me that "I should be there first tanking".

Sorry if I haven't given up on the world and want to kill myself, but the only way in hell I am walking up 2/3 of an unwarded lane to accompany some arrogant carry who doesn't give a rat's ass about strategy "cos it's silver/gold", is if there are 5 grey icons on the enemy team. Yeah no. I'm breaking my back here trying to clear 4 sets of wards, and frantically run around placing wards that should already be up. You don't get to tell me "You should be here to tank damage cos i was retarded enough to not respect my opponents".

Side note: all you not-support-main people (and even a few of the support mains) playing support, if you aren't going to place wards, don't buy Sightstone. You're just wasting gold and slots on items you clearly don't intend to use.