Why does the "background" matter? An accidental/uninentional score sharing is still score sharing.
I seem to be not alone who finds it funny how in some situations hwbot staff bother with seeking for/considering penalty softening arguments like with John Lam (oh, he had a close score himself, oh, he is close to hwbot sponsors, oh, he is actually an experienced bencher) while in others, like with 12 and Diabolo, one (accidentally?) shared pair of screenshots was enough to instantly issue 1 year ban for BOTH guys without long discussion/hesitation.