@savagechess2k> No, it wouldn't . Swiss tournaments are too slow. For example; if you win a game in 5 moves, you have to wait about 10 minutes for the next game. Swiss can only played OTB.
This is nonsense. Can't you wait 5-10 minutes once or twice in a tournament if such a thing suddenly happened in blitz swiss and do something else in other tab? It is not very likely that you win in 5 moves.
Have you ever seen a Swiss tournament online? Swiss tournaments were played online on other chess playgrounds long before lichess came up with Arena. And are played today, too (on
chess.com and chessplanet at least).
Swiss is not about playing OTB or online. You also have to wait for the next game OTB. It is about to determine a fair result from a small number of games. Arena fails to do that, and the only tournaments where the result is more or less fair are where most of the players play dozens of games like Lichess Titled Arena - long-lasting, but short time control tournaments. Swiss tournaments just take less time to get the same degree of fairness, and things like "Yearly Classical" are much better to make Swiss and at least halved in time. Playing a lot of bullet games in a row is fun, but playing 10-hour chess tournament is no fun at all, to say the least.
@Unihedron > Long style tournaments imply having everyone to reserve their spot and commit to playing each round. This is simply not feasible with just the feature because it will lead to commitment problems since we can't force players to show up. If anyone bails out, the entire tournament is trashed.
Such problems are effectively resolved on other sites and in Lichess45+45 League's Lonewolf 30+30 in particular. There ARE ways to handle no-shows of players.