This argument doesn't seem correct to me. It's not like Google has had great customer support when they started out and later on, as they became a monopoly, the

This argument doesn't seem correct to me. It's not like Google has had great customer support when they started out and later on, as they became a monopoly, they stopped doing that so it's one of the (many) signals it's a monopoly that doesn't care. Google never had customer support, it's whole business was built around that model. They are successful BECAUSE of it, not IN SPITE of, and only the latter form can be a signal of monopoly. If you want a more accurate signal here go for "Google doesn't care about its users as much as it did many years ago" in terms of anti-user features and changes it's making all the time now. But of course that's a bit harder to show as happening because you have to take each such change on a case by case basis and show that indeed it's hurting more users than it's helping (because many such changes while they seem as they go against the prosumer or the HN community, they very much follow what the average Joe needs or wants).