Are gold revaluations a good answer to fiscal pains?

Recently, there has been an ongoing debate about financing Poland’s growing military expenses by profits from NBP’s gold revaluation. While I found Adam Glapiński’s rhetoric suspicious, other countries did realise some of the gains from gold revaluations to offset losses or retire debts.

Can this type of policy raise some alarms or erode trust in a country’s Central Bank if used too often? Can it be inflationary?