I'd like to support xhamster by subscribing or making micro-donations to my favorite videos but I don't want to sign-up and connect my billing info not to risk my sexual preferences to be leaked.

I suggest Smartlike (I'm a developer) - a free non-profit donation processor that turns likes into micro-donations with just one click. It uses a model with deposits and withdrawals without cryptocurrency: donors deposit funds at creators they trust and then use them for anonymous feeless micro-donations. No registration or private data collection.
Let's integrate.

https://smartlike.org/channel/4Dd0lJMg4TT3IAFb5XBThQa6zoYs0UTMDw4cat

https://smartlike.org/channel/xhamster.com