... I think we need more careful about detect alt account, we shouldn't tag someone by suspicion only (IMO). Transaction made on each other also not strong proof of alt account. We can exchange something each others, so it would not consider alt account also.
I have said the same thing several times on the "Known Alts" thread...
Just because one or more ETH addresses send tokens to another ETH address, does not make them all Alts... but no-one listens, they're already off on their
witch hunt "crusade" to rid the forum of alts "abusing campaigns"

How many times was this conclusion wrong in comparison to the times it was right? Right. Quite disappointed by the meriters who think this is the right way to do things.