This argument makes sense, however all is a questions of stats: How many spammers would have the knowledge necessary to do that?

Yet, on second thought, you just need one person to translate the code to english, and post it... So all algorythmic rules are out of the game...

On third thought maybe not, if there is an engagement button: what about an anonymous Spammy button? If too many 'spammies' appear on a user, there could be an alert for anti-spam / fishing moderators like @arcange. A spammer account is easy to recognise on inspection.