This warrants a negative feedback. He can not be trusted with any financial trade anymore. It is risky to involve in any trade with him.
When someone is promising to send funds to a community event or mutual betting with individuals, automatically it becomes mandatory to honer the deal.
I personally engage with many members in side bets [in premier league], when the word is out it must be honored that's how it works. I am using this post as a reference of the negative feedback I am about to write in him feedback page.
Certainly, this is not correct negative feedback. He didn't harm anyone here, he didn't even send those coins. His promise was voluntary and a kind of donation and you cannot accuse someone for withdrawing his self-initiated donation.
He can always say that he urgently needs the money and that he cannot afford it at the moment.
You don't just break promises in a community because you're having a tantrum!
Although I am of the same opinion, we cannot say with certainty that anger is the reason for this decision. In a fit of rage and renunciation of all forum things, he would renounce his input and leave the signature campaign. If it means $200 a week to him, why would he give up $1649.