I don't think there would be reason to, except in protest perhaps. 750Kb size block is 750Kb no matter what transactions make up the block; whos transactions go

I don't think there would be reason to, except in protest perhaps. 750Kb size block is 750Kb no matter what transactions make up the block; whos transactions go into a block wouldn't change propagation time. Miners would rather take other peoples' transactions if forced to take transactions at all. That way they get the fees.