In recent times, on social media, fans' banners and even graffiti, the words, "Against Modern Football", have increasingly been seen.
This is not some Luddite slogan from those hell-bent on defying progress, nor yet an exercise in misty-eyed nostalgia, imagining that days gone by were without their faults.
Rather, it is an indictment on the practices associated with the corporate game of football today.
A sport that often seems to have lost its soul as the joy of the game is increasingly subordinate to the business interests of those who know everything about how to make money but care nothing for fair play in the boardrooms, on the field and in the stands.
Celtic choose to brand the the club, "like no other" and indeed there are many things that set us apart.
But, when it comes to commercial matters, it can be seen that Celtic is a club like very many others across the world.
Fans are only of worth in terms of their spending power and PR value.
If they help the team, create an exciting atmosphere, draw praise from the best players from the most famous clubs; good. But pay for the privilege, buy the tickets, the shirts (preferably all three) and subscribe to every paid service the club has to offer.
When clubs from the richest leagues come to town, it's a PR extravaganza, carrying "the brand" worldwide.
But clubs from smaller leagues - like Norway, for example - who cares?
Is the world going to buzz with news about Celtic playing Rosenborg? Probably not.
Similarly, there isn't likely to be a lucrative Norwegian market for shirts and merchandise.
Does that mean that Rosenborg fans don't deserve to watch their team in what Celtic fans hope will be their last round of Champions League football?
Apparently so. At least to some.
But, to others, the fact that Celtic are refusing to sell TV rights to the first leg against the Norwegian champions is nothing short of shameful.
It is an embarrassment to a club that often seeks to cash in on the image of a higher football ethos.
The inherent unfairness of the Champions League has rightly been bemoaned by all connected to Celtic.
It is simply wrong that the Scottish and Norwegian champions have to play each other in the second of four qualifying rounds.
But what is also wrong is the fact that only the Rosenborg fans able to travel to Celtic Park will be allowed the simplest right in football - to watch their team play.
The Celtic suits and their shield-bangers in the "independent" online community will tell you that this is necessary to protect Celtic from illegal streams and to encourage a solid turnout to back the team.
Cynics will say that Celtic are more worried about forcing fans to fork out the exorbitant prices for home matches when UEFA is not in control of the broadcast rights for the matches.
But bottom of the list of priorities - again - is the lowly football fan. You know - the ones who keep the damned game alive and awash with money that flows from the many to the few?
Few fans can travel to international away matches and many can't attend games at all.
But that matters little to the self-appointed censors at Celtic Park who hold in their hands access to, not one club, but two.
The fact that the early rounds of the tournament are overwhelmingly the preserve of clubs from smaller leagues makes this easy.
Rosenborg fans will, quite rightly, complain but few in the outside football world will listen.
And nor will the executives and directors of Celtic Football Club plc.
A corporate club, like any other.