I have a question. I read on the bitcoin site that currently the transaction rate is limited (at 7tps). This seems like a good precaution, as otherwise someone

I have a question. I read on the bitcoin site that currently the transaction rate is limited (at 7tps). This seems like a good precaution, as otherwise someone could try to flood the network, but what enforces that limit? Is it that by and large miners use software with that limit, so transaction floods are ignored?