A rare few of your members will create something above and beyond what most people create.
It’s usually something which took a lot of time, a lot of resources, and a lot of skill.
When this happens, I think we need a ‘no naysayer’ rule.
That means no-one gets to say they could’ve done it better, question the contributor’s motives, or attack the contribution. Constructive criticism is welcomed, but it has to be phrased in a constructive, sincere and empathetic way.
Anyone who breaks this rule wins a ‘naysayer’ badge for a week.