Cell hoppers are players with tunnel vision. They're willing to take the cells of other teams they join, without contributing hardly anything back. When the wanted cells are depleted, they move on. It doesn't matter if they stayed long enough to be included in a battle. They leave anyway. They're vision of having or ranking up a certain monster hurts the progress of team members who donate to them and hurts teams if they were inserted into a war. The timers aren't enough. They don't want to participate in wars. That's not why they joined. Team leaders and co-leads don't have any way of knowing if a player has a timer.

In essence, cell jumpers are thieves without fear of punishment. Now, the Library is in progress. More parameters should be implemented to prevent cell thievery.

Suggestions include banning players from joining teams, based upon the number of times they have hopped within a short period of time (2 Weeks) and stats demonstrate equal ratios of the types of cells donated and received. Repeated offenses include incrementally increasing ban time each subsequent time they are banned, with the inability to receive cells for a period of time after the ban is finished and they join a team. This will discourage and punish cell hoppers/jumpers. Limiting their ability to join AND receive cells immediately will put a huge damper on the urge to acquire cells through team hopping.

I would be concerned about a system that might unfairly punish someone who keep getting booted from teams because their monster power is too low. I would like the option to prevent new team members from requesting cells until 1) they fight X number of war battles or 2) Y number of days have passed.

How about create a feature where players can offer a trade of cells aside from donating cells. Players can only donate cells to those players who they think are not hoppers. If a player is requesting for a cell donation, other member can offer a trade instead or just donate cells.

Why not make your own rules as a team, when you except someone or with an open team someone comes in a team tell them your rules. for instance you have to be active in war before you can ask cells and not ask for unbreedable monster cells in the first week or so and explain why your doing this if they don't except your rules kick them out. Its like if you want to be part of a team you have to do your attacks.
If a new member comes in our team and he asks for legendary cells first before he introduces him or herself I tell them straight away that not how we do things in our team.
Most of us let all know what we donate (not all) but its nice to thank someone for given cells. We had some who where there for cells but they also did their attacks so as long as they did their job I don't have a real big problem with that.
For all kind off purposes its best to explain what you except of new team members and what the can and can't expect from you

@Marianne-van-Es said in Cell Hoppers- Timers are not Enough to Discourage:

Why not make your own rules as a team, when you except someone or with an open team someone comes in a team tell them your rules.

We do that, but the in-game chat does not lend itself to this. The description field for the team is too short. The chat itself does not lend itself to long rule posts. It often times takes me three of four posts to get what I am saying across. I have one post that uses LOTS of shorthand to convey our acceptance criteria for joining, but our team rules are more complex. I wish they would make the chat system better or maybe link to something else like Discord or Line.

How about a feature for cell hoppers, if they got donate and leave the team without contributing, punish them by empty their cell vaults or with gems so they can actually learn a lesson :D

@Khung-Long said in Cell Hoppers- Timers are not Enough to Discourage:

How about a feature for cell hoppers, if they got donate and leave the team without contributing, punish them by empty their cell vaults or with gems so they can actually learn a lesson :D

That's a little harsh. I think teams just need to NOT donate to people unless they are going to hang out. "speed war" doesn't donate until they fight their first battle. We understand that you might not even win, but we don't donate unless you try. I think teams need to do things like that.