this post was submitted on 08 Aug 2026
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cross-posted from: https://lemmy.world/post/50434194

Proton VPN's pricing page exposed an ab-test identifier linked to two VPN Plus prices: €2.99/month (70% off) and €3.49/month (65% off). Repeated testing produced B → A → B → A → B, with the variant matching the rendered price each time. €12 difference over 24 months.

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[–] mannycalavera@feddit.uk 0 points 3 days ago (1 children)

Randomised is not what makes it ethical. It's what makes the AB test statistically valid such that you can test your hypothesis.

Ethical would be to run the test, gauge the click through rate to checkout to find a winner, then for all those you charged the higher price to give them a discount code such that everyone gets the product at the same price. What you're testing is the click through rate of a price advertised further up the funnel.

Maybe later you can say ok the rates didn't drop off people seem ok with the higher price. Higher price for all. Or not as the AB test would reveal.

[–] tabular@lemmy.world 1 points 3 days ago (2 children)

Getting the same price in the end is great and all but I can't say being tested on without my prior knowledge or consent seems ethical.

[–] mannycalavera@feddit.uk 1 points 3 days ago

That kinda depends on where in the world you are. In Europe we have strong protections such that users need to consent to that type of testing (remember those annoying cookie banners? well what do you think they're for 😉). But if you're in the US... well, my apologies.

[–] daychilde@lemmy.world 0 points 3 days ago

Well, regardless, it's a part of our capitalistic system, and clearly people here on Lemmy are unaware of how business works.