Players will be able to play 8k without any worries of what style it adopts, just like all the other keymodes. Players won't be driven away from a song simply because the style doesn't match their own style. Ever since osu!mania started, lots of maps converted from other games were played, but never did osu!mania force the player to play the maps like the game it originated from.

Since this is happening now, are we to expect 7k songs from DJMAX to force their 6k+1 style? What about the left-to-right style for the BMS converts? Are we to expect songs from stepmania to force upscroll? So games from early beatmania will force 5k+1 too? This is ridiculous, a style is something that belongs to the player and is not something you force upon a player. Osu!mania so far had the great ability to please players of any style. Customs skins, custom keys, custom maps. Whether a map was mapped with a style in mind, it shouldn't be forced onto the player if he wants to play it in his own style, despite any disadvantages it might impose on him.

Forcing styles causes many problems. The biggest being not knowing what style the map is. 8K will never be active in multiplayer if half the players fail a song because the map that the host chose had a forced style. People that play 8K exclusively will get annoyed of changing their settings for every song and end up trashing the songs with the style that has the least amount of maps. New players are already intimidated enough with 8K, is telling them that they need to learn to play it in 2 different ways going to encourage them?

And lastly, in the long run. One style will take over. Mappers want their songs to be played. Given the two styles, they'll map for the more more popular one. Someone once mentioned limiting mappers is never a good idea. Well forcing this style will limit mappers indirectly since they won't want to map for a dead style.

There's so many reasons why players should be able to chose their style and why forcing them is a bad idea. This case shouldn't be ignored.

When a map is made in a specific style, it doesn't matter how the player plays it since the map's style will still be there. Yes, there is a difference between the player's style and the map style. Of course it's nice when the player's style matches the maps style, but saying that only that player style can play that map style is far from the truth, very nearsighted.

A song's style is still very present when played with a different player style. An example would be those BMS converts for 7K (kudos to Davteezy and Doorknob for that). You know instantly that it's a BMS map, and no you don't need to play it left-to-right style. Same goes for all map styles and all player styles. Even if the map style uses mechanics that can give a certain player style a disadvantage, it doesn't matter. The player himself will decide if he wants to change styles. and in most cases he won't. He'll stay because he'd rather have a slight disadvantage over completely learning a new style. It's fine, it's his choice.

Just like how people decide to ditch the spacebar in 7k, play 4k single-handedly, play symmetrical 8k with 2 thumbs, play 7k+1 style or sym 8k. It's a choice they made and they're content with it.

No one, forums or chat, mentioned anything worth putting here. Most of the points that were mentioned fell in "doesn't matter". I asked moderators, CATs, BATs, new players, experienced players, 8k players, non-8k players. And nothing. There is nothing positive about this, nothing at all.