1. I guess
Anyways, for the others: The watermark method won't work anymore since August 2024.
1. PASS AUTO-DETECTION: I guess Tinder just scrapes all detectable text from photos (because they can), and then Tinder treats it like bio text. Thats how I would code it. From this perspective you could probably still hide it in photos if you are very creative (just like this can still be done in the bio). It should just not be an obvious social handle.Any automated method can be fooled if you are doing something unique. But obviously more people will try this and Tinder will refine.
2. PASS USER REPORTING: But on top of that, if it passes auto-detection, it should also still pass not getting manually reported by users, meaning that it should contain some vibe of fun/personality/authenthicity/realness. The more this accounts works for you (the more viewers) the higher the chance of getting reported by one of these viewers if there is just a little off-vibe on your profile, many people are very vengeful to this, they love to report. It also helps to not be "too attractive / too good to be true" in general, even if you dont have a social handle anywhere, you can get reported out of "revenge" just for that.
3. PASS HANDLE FREQUENCY/RECURRENCE: Also it can be the social handle itself. Once a social handle is flagged, then when you just even type it in the chat (while its not in bio/fields/photos), and not even in the first few messages (after a bit of challenge for the guy), it will still shadowban you. (Although they dont do it directly , the shadowban is delayed for say 12-24 hours, maybe on purpose so you cannot figure out the causality of what caused it). Even if your social handle is not flagged , it can potentially just detect how much you type it. If you type it way more than the most eager normal girl, you'll be shadowbanned/throttled-down as a safety precaution. Actually, I have to correct: the normal eager girl will also be shadowbanned herself, even though she is real, tinder is that sensitive. So for the case of chat method vs bio method, the creative bio method (if creatively done) can be better than the normal chat method actually. Because when the bio method is undetected, there is no handle frequence/recurrence yet. And when you do it normally in chat, it would trigger handle frequency/recurrence. (So in the chat method you must creatively hide it too. Or have unlimited amounts of handles, or have relatively undetectable ways of saying it in the chat)
4. PASS FACE SIMILARITY: if you use the same model for multiple accounts, you must change the face a bit so the percentage similarity score is less. (And faceless is impossible in certain tinder regions already, will be impossible in all regions soon). otherwise all accounts are linked.
Even if you find some creative loophole now, it wont be forever (maybe few months success only). Tinder is fighting this. You won't win the social handle in bio/field/photos game for any long-term advertising system. It will be a lot of lost work ,for 3 months of success max (if you're lucky enough to find a loophole). My opinion.
I think only really creative chat, with multiple social handles, multiple unconnected faces (and somehow face verifying this live), and throttled down in "speed of handing out your handles" from your side, is the last way that could actually remain undetectable.