Waaaay too secretive, convoluted and vindictive in the way that it assigns your "score" or "visibility" and deals out extremely low scores or even suspected shadowbans and such. Suspected to remember facebook accounts/phone numbers and reassign low scores upon account deletion and re-creation, or penalize you in other ways. And now on the verge of making impossible to truly start a fresh account with a clean slate, score-wise, without using a new phone number.
They make it convoluted and difficult to use it in a reasonable way and get any kind of visibility, whilst at the same time penalizing people for deleting their account and starting over again, which they are obviously going to want to do because of how easy it is to unintentionally brick your account.If you are thinking of installing this and liking a selective handful of profiles that you particularly like the look of, and expect those profiles to ever see yours, think again and choose another app/website. Basically if you don't swipe right on somewhere approaching half of the profiles you see like some kind of horn dog you will get a crap score/visibility, if you haven't used your account for a while you get a crap score/visibility, and so on. It's like you're constantly fighting against it to stay above water, and that just isn't beneficial.
They orchestrate it like this, and periodically remove/retárd functionality, so that a minority of users will pay in an attempt to make it useable or restore functionality that was previously available for free, and this obviously works out for tinder business-wise, because the amount of users that are deleting their accounts and will never touch the thing again, without having paid a single penny, is staggering and increasing every day, so they must be getting enough money from these few, paying users to make it worth it. Useful if you are an instagram or snapchat slut and want to increase your followers though.
Oh, and now you have to repeatedly "verify" a phone number literally every few days just to be able to open the app. Yeah, that'll bring in more users and not annoy existing ones...