alt Hacker NewsI don't see how your example, The Browser (thebrowser.com), supports your argument that ad-hoc query-string additions are so prone-to-breaking that 3rd parties should ban them.
In fact, the example seems to suggest the opposite: a 17+ year successful paid subscription business – to which you appear to be a generally-satisfied customer! – receives enough "business value" from the practice, despite its failure modes, they don't want to stop. Improving their probe of the risk-of-failure was enough.
Seemingly, the practice works often enough, pleasing more destination sites than it angers, that "referral tracking" is not something "so minor".
> Improving their probe of the risk-of-failure was enough.
The point was it was dangerous in a way they didn't even realize was an issue, for a thin business rationale. Unless you are going to do thorough tests and understand the risk you are taking (which they did not, as evidenced by screwing it up systematically at scale for years), you should not be doing it.
And it's not obvious that they are correct in their tightened-up testing, because even if a link is correct at the time they test it, it could break at any time thereafter.
> to which you appear to be a generally-satisfied customer!
No matter what _X_ is, _X_ would have to be a pretty epic screwup to make a customer unsubscribe solely over that! I never claimed it was such a major epic screwup that it could do that. So that is an unreasonable criterion: "well, you didn't outright quit, so I guess it can't be that bad." Indeed, but I never said it was, and somewhat bad is still bad; I was in fact fairly annoyed by the random breakage, and at the margin, everything matters. If TB did a few other things, in sum, they could potentially convince me to let my subscription lapse. An annoyance here, a papercut here, and pretty soon a generally-satisfied customer is no longer so satisfied...