you are assuming that i have 1 phone. when i hit my enemy, i do it together with my partner. each of us use 3-4 phones. we can take down a full gym with big mons in 3 minutes, if the defender does not feed berry.
correct 100 berries is really nothing. but i come back day after day to hit you, and if you are using this gym to take coins. i will make sure that you do not get the full amount.
i used to hit one guy for 4 straight days. it is his territory. he defended stoutly. if i take his gym he comes back and hit me. we hit each other of hours everyday. on the fourth day, i stopped hitting when the gym contains 5 of mine and 1 of his. on the fifth day, he did not defend when i hit him. on the sixth day, i did not hit him anymore.. after that, whenever, i walk into the gym, he will let me stand for a few hours coz i go in only once in a while. if he start to hit me again, i will disturb him continously