richyfourtytwo wrote: ↑19 February 2025, 18:01
Afaik there is no such thing as an ELO-loss in coop games.
That‘s wrong, example Hanabi. There is almost as many different ELO implementations as there are coop games…
Ceaseless wrote: ↑19 February 2025, 13:49
ufm wrote: ↑19 February 2025, 04:31
vitinho0Z wrote: ↑18 February 2025, 22:51
In colaborative games when the team has a bad performance (and probably ELO loss), and someone that abandons on purpose evading a ELO loss, could this be considerated cheating?
Abandoning cooperative games is now impossible, since December 2023.
Conceding cooperative games automatically results in 0 points, and in Hanabi getting 0 is worse than getting 1 or more points, obviously.
Wait, what? How were you ever getting more than 1 point from conceding? Or any points at all upon ruling out going from 0 to 1? What sort of system did cooperative games have?

I'd have figure at best they'd have only been able to abandon for 0 points to avoid rating loss from conceding, which would be cut down by the update you describe. That they had a way to gain points from conceding seems wild.
Not what he said, and probably also needs understanding of game-specific scoring and elo implementation. In Hanabi, a perfect score either is 25 or 30. For high ELO players, everything below perfect score likely results in ELO loss. Accordingly, in the old system, abandoning (assumed) imperfect games, that cancelled any scoring and ELO adjustment, was very common to avoid ELO loss. Now, an abandon is counted as a loss / game over, equaling a score of 0, and therewith the highest ELO loss possible. There still are plenty bad apples, but Hanabi is much more enjoyable since.