I would not say it is "tall poppy" it is more understanding other people and having a bit of consideration for others that don’t have the same ability as you do.
Limiting picture sizes does not disadvantage you as much as not limiting them would disadvantage some people.
The size limit is in there to be fair on people that don’t have the latest toys.
Try to think of someone other than yourself and have a bit of compassion for those that want to be part of the group but would not be able to if you had it set up to best suit yourself