91.319 (a) (1&2) governs all aircraft issued an experimental certificate.

It says you cannot Operate the aircraft for
1. purposes other than what it is defined on your certificate "recreation and education"
2. For carrying persons or cargo for compensation or hire.

Fact.....
Therefore I cannot accept money or any compensation to perform a training flight. Contravenes 91.319 (a) 1
And I cannot fly mail from one airport to the next for money. Contravenes 91.319 (a) 2.

Renting is not operating. Renting is not carrying person or cargo for compensation or hire. Renting does not contravene "recreation or education". If someone accepts money to pilot the aircraft then I see a problem. If someone uses the aircraft for something other than recreation, I see a problem.

I will add this too, if you read further down, the FAA prohibits leasing (renting) LSA. LSA also have an experimental certificate. So wouldn't it been redundant to add the rule if (by your argument) 91.319 (a) took care of that.

So that's why I ask if there is a rule similar to 91.319 (f) that prohibits leasing or renting an experimental.