Most accounts are getting banned once botting passed level 60+ on most skills... So to prove it is hand done when selling is to show proof that your account is clear of any botting bans.
Let's say you wanted to make a 40 att , 99 str - by hand, the account will not have a single ban/mute and you will still be able to login once you hit 99
... Try to bot 40 att , 99 str without getting a single ban or a perm ban before u reach your target levels. - I wish you luck!
I've not tried 40 att , 70 str but the chances you'd reach that without getting a single mark on the account - is slim.
^ Exactly.