I wouldn't call that all abuse, some galtings/avengers maybe. By the way, it's possible to farm them in TB with few people, and we actually did that for a while, and can still do that. Any high CW alt can get a dog, sneakers/looters are necessary anyway if you wish to PvP at all.
Making alts have been a part of fonline, like forever. I wouldn't call that abuse, just bad game mechanics, unfinished mechanics, call it whatever you want, but not abuse.
All that can't be combined if you don't play together with players and cooperate, dog mule+CW alt in towns can't be used if you don't have a friend helping with protection because why should he if you don't share a base, as you said you will just get bursted. Efficient use of TC locker resources to obtain other items can't be done if the rule is who first get's to TC box, get's the loot, individual player get's the profit not a player group.