has no intent to pay
Exactly. That's the thing. Being unable to pay, because the tax company or the payment processor is making problems, is not intent to not pay. And being slow and having bad communication with the hired companies is also not intent to not pay.
You just do not know why your or other payments are being held. It's part of the issue and cause for frustration. And it is also the main cause why such things are not to be discussed in public message boards. They just cannot answer you here and say, hey, we have some very dubious transactions on your account and some agency is looking very closely here and accuse you and us of money laundering. Or, hey, you sure you made correct statements here in your tax info and your registration info? And why are there so many complaints on your account of people that claim you scammed them? Or hey, why did you register your company in a different country than your payment destination? Things like that. And my guess is, that the most problems are taxes and maybe even money laundering investigations. Itch has pay what you want and suspicously looking things could happen easily. Transactions over a certain sum are monitored and will get extra scrutiny. Plus you might have noticed how the US government went extra crazy about tarifs and so on.
Anyway, intent to not pay would be fraudulent. And I go with the proverb, never attribute to malice what can be sufficiently be explained by inability. In other words, I do not believe that Itch wants to not pay you and other creators. But Itch is ... indie. You see this at many places. But for better or worse, it is bascially the best place for indie devs, because it is the only place. Most devs here would not be accepted at places like GameJolt, let alone Steam.
Please read the statement about payment issues.
... will take you to a special page where you can submit a request directly within your dashboard without writing an email. Your message will be associated with your account and payout, enabling our staff to review your requests more efficiently. Tickets created through this link will be monitored by the staff that processes payouts, instead of going into our regular support queue.
That's the right channel to complain.