I'm done with deep dungeon

[FinaSel]

When someone is in a group, it usually means group effort and cooperation are required for the content.

If one person is not cooperating with the rest of the group, the group may find it more beneficial for everyone to kick this person. Seeing as the content requires a group (in other words, cooperation), someone who does not cooperate or adjust to match the play style of the party could become a hindrance.
If a healer is only healing, and not DPSing, and is not vote kicked, then the group must not find that person to be such a hinderance. But if they are kicked, then it is because they are not cooperating as a group.

Keep in mind, kicking someone requires a majority vote of the members.
With this in mind, a single person cannot kick someone from the group for not matching their playstyle. The group kicks someone from the group for not matching the group's playstyle. In other words, not cooperating or working together to accomplish a goal.

If someone wants to be part of a group, it is sometimes necessary to either:
A.) Find a group who wants to play similar to you.
B.) Adjust your playstyle to fit the group.

Otherwise, the first 50 floors of Deep Dungeon are soloable.

[KeiranOlive]

It's hard to say what was going on, but what stands out to me in your responses is that you said you were going off on your own a lot and also ignoring the gold chests. From my experience, most people prefer to stay together as a group. In my runs of the dungeon, there have been a couple times when splitting up the group has resulted in deaths and near wipes. Usually this is caused by traps like the landmines, silence/pacification or luring traps overwhelming half the party while the other half is a couple rooms away. Some people don't mind splitting up to explore, but there are others who don't like it and will see it as not cooperating with the group.

As far as the gold chests, normally you would want to open them all for the pomanders. I don't usually see many parties ignoring them. I know I get a little annoyed when a party I'm in tries to ignore the chests in favor of a speed run.

Also, repeatedly getting kicked on the floor right before the boss sounds like they didn't like something you did and wanted to kick you when it would hurt the most. That's just a guess though.