One cannot gain ground by implementing a solution that's susceptible to the same conditions the solution was meant to solve.

We pay ppl for mining a block and they prove this with a smaller number after a double round of sha256 than anyone else.  How do TX relayers get paid?  I see one of two possibilities.

1. It's advantageous to append to the list of really proofs because you'll be paid more for not discarding proofs supplied by others.
2. The relayers will discard all other proofs and forward the TX directly to the miners with just them being paid.  The miner will strip off that proof and supply their own.

In the case of 1, miners will generate a set of proofs as long as they can...  Even if they have to supply millions of watts to dedicated ASIC chips to do so.

I don't see how one intends to 'prove' to the blockchain that they relayed a transaction, without someone else being able to undo their efforts.  Explain this shit to me.

The best I could come up if is proof by guided tour, but then who pays the tour guides and how do we pay the payers of the guides?  It's an endless loop.