Best, safest and Secure Tribute / Payment Methods

Whilst looking at different profiles on various platforms there seems to be a plethora of payment systems subs can use to tribute their Domme. But still it seems quite common for subs to (perhaps stupidly) ask if they can tribute another way to those suggested in a Domme’s profile. I was wondering if this is because the sub is having to hide certain ways of paying from others in their life or if they felt their personal information could be mis used. So my question is - is there a payment platform or cash app which keeps a subs identity anonymous when sending money and if so which are the most popular. I appreciate it is probably a subs job to find all this out but as Dommes are the fountain of all knowledge I hope I haven’t caused any offence by asking on behalf of the lower species this question.