Quite correct, both sides are clearly visible and there might be some point to using containers anyway. But there's a bigger issue here. The comments the OP re

Quite correct, both sides are clearly visible and there might be some point to using containers anyway. But there's a bigger issue here. The comments the OP received, are heavily worded to the point that they explicitly state that the article made them angry. Regardless of whether containers are suitable or not for task X or Y, it is very difficult to have a normal conversation, if one's comments can actually make people angry.