I did, and I agree with the criticism. The fact that you're offering factual information doesn't change the fact that you're:
1. Deliberately manipulating buying decisions for profit.
2. Concealing the fact that the information you present is intended to manipulate, not to inform.
3. Ignoring whether or not a buying decision will genuinely benefit the customer and not just the seller.
Put simply, you seem to have zero interest in the customer except as financial prey.
Do you really not understand how shady this is?
It's true that persuasion is everywhere - but so what? Germs, pollution, poisons, politicians, and other bad things are everywhere too. That doesn't mean we shouldn't try to mitigate their damaging effects.
If you don't understand why this is a problem, consider how customers would feel if you explained your manipulation up front.
How much damage would the brand suffer?
Now, if you had customers who were happy with your presentation after an open explanation ("Yes - tell me when you're about to run out of stock so I don't have to wait until you restock") that would be different.
But instead of giving them that choice you're using textbook psychological exploits to push their behaviour around in ways that benefit you, potentially at their expense - and IMO that's certainly not a cool thing to be doing.
Let me touch on each individual point of your criticism:
1) Doesn't every single shop/business try to convince (I'm not using manipulate because of it's incorrectness and the negative association some people may have, see other comment) you as a potential buyer through the same principles? Is that a bad thing? Why isn't it 'allowed' in your eyes to emphasize your strong points (usps) or factual info about a product? What's the difference between our tool and mentioning these facts on the site it self?
2) We inform people about a product shop with factual information so that they can make a better decision. Example: A customer is worried if this shop is legit. Letting them see a message with the number of positive reviews the shop has got can make that worry go away. Social proof also helps in this process (just like we do in the real world when seeing an empty restaurant versus a crowded restaurant).
3) See (2). Our main goal is trying to convince customers of buying at a shop. Helping the shop with communicating their sales pitch to customers isn't about ignoring the interest of the customer. It's in the interest of the shop owner that he guards the interest of the shopper or else his retention or returning rates are going to be very bad.
Your comparison of germs (etc) with persuasion misses every point...
If I would tell customers that if they feel insecure about something (is this shop legit?, is this a popular product?, how long do I have to get it tomorrow?) our tool would provide them with the answers to that at the right time (using our algorithms and data-analysis), then I'm sure no one would object.
Lastly: people are intelligent creatures. If stock info on a product doesn't have your interest but you see it anyway, you'll ignore it (like we do all day with other inputs/noise). But if you are interested in a product and need it fast, than a scarcity message at the right time will certainly help you.
1. Deliberately manipulating buying decisions for profit.
2. Concealing the fact that the information you present is intended to manipulate, not to inform.
3. Ignoring whether or not a buying decision will genuinely benefit the customer and not just the seller.
Put simply, you seem to have zero interest in the customer except as financial prey.
Do you really not understand how shady this is?
It's true that persuasion is everywhere - but so what? Germs, pollution, poisons, politicians, and other bad things are everywhere too. That doesn't mean we shouldn't try to mitigate their damaging effects.
If you don't understand why this is a problem, consider how customers would feel if you explained your manipulation up front.
How much damage would the brand suffer?
Now, if you had customers who were happy with your presentation after an open explanation ("Yes - tell me when you're about to run out of stock so I don't have to wait until you restock") that would be different.
But instead of giving them that choice you're using textbook psychological exploits to push their behaviour around in ways that benefit you, potentially at their expense - and IMO that's certainly not a cool thing to be doing.