Or do you claim that people who have not x amount of merit earned are automatically scammers and spammers who shouldn't be accepted into campaigns?
They're not. There are members with zero merits earned in other campaigns as well but no one has a problem with that since they're not flooding the forum with spam like Stake's signature campaign. Just go through any thread in the Gambling discussion board you'll be annoyed to see the threads are just filled with posts one after other from Stake's participants.
Even so in this specific case there seems no legitimate reason for this particular poster to have a red tag.
Please present the observable instance of him scamming or else a strong case that suggests he scammed or is going to scam.
Or if you want we can analyse why lauda does not have a red tag for scamming and perhaps taking this persons bch?
It seems this person is claiming lauda red tagged him for voicing his opinion on laudas behavior. That fits with laudas general MO so if that is the case then the OP is correct to have a gripe here.
Whether he or lauda is correct about stake and their sig spammers does not seem to be the core issue here.