[aMorePerfectUnion]

“I never said indulgences “don’t exist”. I said they aren’t *sold*.”

First, they were sold.
Second, they could be sold again in the same way - without sanction, but probably with knowledge.
Third, I expect money doesn’t overtly change hands. It is likely more of a large gift to the church in exchange.
Fourth, they do not publicize this.

“There is no money involved when I read my Bible for 30 minutes, receive communion, make a good confession, and say three prayers for the intentions of the Pope.”

If you think you get indulgence brownie points for doing any of that, you are far outside the Biblical teaching.

“But you do that, too, don’t you?”

Dear friend, if you are asking if I read God’s Holy Word, certainly. Partake of the Lord’s Supper, certainly. Confess my sins, certainly. “Three prayers for the intentions of the pope”, no. Nor do I have the false belief that any of that earns salvation, or time off for good behavior.

[St_Thomas_Aquinas]

First, they were sold. Second, they could be sold again in the same way - without sanction, but probably with knowledge. Third, I expect money doesn’t overtly change hands. It is likely more of a large gift to the church in exchange. Fourth, they do not publicize this.

It's not necessary to speculate. Indulgences aren't any great secret.

Primer on Indulgences