I mean we're talking about 2 totally different things, yes Duel allows 1v1, but only in a specific setting in specific maps, without a special system built around it. As for not knowing what happened to a similar suggestion you supported in the past; Not everyone takes the effort or can find similar suggested content that was posted before. Things can change a lot overtime, something that might not have been a good idea a long time ago, might be a good idea now and the same goes for the other way around. Unless you changed your own mind, I don't see why you would vote against it if you were in favour of it before. This is almost as silly as declining the suggestion, because you think other things have to be fixed first.