Four years next month since my first no-KYC card top-up — 14 July 2021, $200, and I lost eleven dollars of it to a swap I did not understand. Since then I have pushed somewhere around $640,000 through cards in this category across eleven providers, five of which no longer exist.
I keep records because I do not trust my own memory of what worked, and because most of what gets repeated on this board is one person's bad week generalised into a rule. So: ask me things, and where I have a number I will give you the number and the date. Where I do not I will say so rather than guess, which will be more often than you expect.
Things I can answer with data: fees actually charged versus advertised, decline rates by merchant category, how long cards survive, what happens at the limits, which failures were the provider and which were me.
Things I cannot: anything about physical cards, anything US-specific, anything about cashback because I have never earned any.
One condition. If you ask "which is best" I will ask you what for, and if you cannot answer that I will not answer the question.