It's a matter of many friends and acquaintances, including me...
Some people ask me if working in cooperation with a friend/brother/cousin results in your account being banned, and to this day I don't have a clear answer about that and I haven't found anything on the forum either.
For example, if you've been playing the game for 2 years and have a kraken set, and a friend of yours started playing and needs a boost, and you share your items with him, would this result in an account ban as it would be considered cheating?

(some acquaintances of mine were banned and space claimed cheating, and the only things they did was share items with friends and relatives so they could evolve together)

Does anyone have a concrete answer on this topic?