I dunno if it's tacky or distasteful, but from my experience, most dudes knooooow that $$ is going towards bills, yet I feel like talking about it can be a bit of a boner-killer? Customers are so interesting because so many of them are eager to pay for things that are spoiling you - i.e., gifts to make you smile, lingerie or shoes or toys that you can use - yet the reality day-to-day stuff can kill the fantasy a bit? However, there is a specific group of dudes who enjoy being the white-knight and are more than happy to lend a helping hand when legitimate emergencies pop up. But still, the mundane bills don't really seem to get many people going. If it is a special goal like new cameras, people enjoy paying more. Like your Tokyo trip! That is the perfect example! Because it does feel special, and they feel good getting to contribute towards something that will make you happy and excited. But mundane everyday bills don't seem to fly as well (except as a specific aspect of a niche fetish).
I peeeersonally wouldn't go that route, simply because I feel like bills can be so personal and boring at the same time? Like... I would feel strange knowing that someone knows which internet provider I use, how much I pay for rent or groceries or utilities every month. That part feels weirdly personal. Plus... Paying to make me smile is much more fun than paying so I can make my monthly health insurance payment, y'know? Health insurance isn't fun, sadly! Health insurance is boring & mundane & we all hate it. I don't even want to pay MY bills - let alone pay for someone else's! So I dunno if that kind of mindset could make someone else hesitant to tip? Plus, I feel like some people definitely visit camsites in order to escape from boring, mundane world. They like paying for entertainment, but it is harder to get someone to find pleasure in paying another person's bills (even though logically, everyone knows where the money goes first!).
I think it might be endearing to make silly or even outlandish goals instead of RL goals? Like... Instead of saying, "Cumshow @ 2640tk to pay my internet bill", I wonder if you could do something fun like, "Cumshow @ 2640 to celebrate my love for anime" or "Cumshow @ 2640 - Contribute to my 'Build a Moonbase' spacefund". Since your profile says you enjoy nerdy/gamer/anime stuff, I feel like you could have A LOT of fun with silly goals, and I personally think that would be superduper endearing!!
Edit to add: However, I do want to say that I am all about experimenting. Just because it doesn't work for some people, doesn't mean you can't try it out for a day or two and see what happens. Because who knows, it might work for you! If you don't get any nibbles, you can go back to your old method! No harm, no foul!