Nowadays it has become exceedingly hard to distinguish legitimate academic endeavours from scam in my mailbox. Not even AI filters can sort stuff out properly: my inbox often contains invitations to fake conferences, or to publish with non-existing journals, while my spam folder at times contains honest invitations of academic value. I could touch the reality of the problem a few months ago, when I was invited to an AI conference in Singapore. I was about to trash the email, when something in th