If a citizen can gain the right to vote by paying voluntary taxes, and in the event of inability or unwillingness to vote — simply not pay taxes (state fees, etc., not counted).

анонимный вопрос

Everything here depends on exactly what issues are being decided by the vote.

If it is a local referendum deciding on a ban on the sale of alcohol within the municipality at night, then it is completely irrelevant whether the citizen pays taxes voluntarily or by compulsion — in any case, the enforcement of the decision of such a referendum would contradict libertarian principles. This is even more true for more egregious cases, such as when, for example, a deputy is elected who will have the power to enact arbitrary regulations.

If, for example, a vote by the residents of a condominium decides whether to allocate only the playground for children to celebrate Ivan Kupala, or let them splash around wherever they want, then it is completely irrelevant whether you live in this courtyard and pay your utility bills on time or not; restricting your right to vote on this principle would be unjustified, since this is not about the distribution of money, but about a temporary change in the rules for using a common resource.

But, of course, in all cases where voting concerns the distribution of certain funds collected into a common pool, counting only the votes of those who contributed to that pool is a completely natural tactic for libertarians.

There is, however, one more nuance. For example, one initiative group collected money and voted to use that money to put up a monument to Stalin in a private park, leasing a site from the park owner for this purpose. Another initiative group collected money and decided by vote to fence the monument to Stalin with barbed wire, placing decorative machine-gun towers at the corners of the fence, and also leased the territory for this installation from the park owner. If the first initiative group wanted to initiate a conflict in society, it achieved its goal. But if they wanted to quietly and peacefully lay flowers for the friend of all children, then it made sense to also inquire about the opinion of those who did not chip in for the monument, but who still have an opinion. Either they will be benignly indifferent, and then why not put it up, or they will be actively against it, and then it is worth thinking thrice.