Well said.
I read someone here, can't remember who, talking about how another trick they use is passing things late at night with only a few members present. Of course, they all know it's happening and would stop it if they wanted, but it's a way to pass something and deflect heat from most of the legislators.
Things like this convince me that legislative rules should be outlined in the Constitution, even at the price of making it more verbose. The system should be biased against temporarily appearing to support something, then backing off.
An easy way to stop the problem of things passing with a handful of votes is to just require an absolute number of votes to pass. So if we want simple majorities, then each bill in the House should require 218 votes to pass. Abstaining the vote is effectively a NO vote, which is how it should be IMO.
Anyway, if you think the House is bad, I come from Texas, where the State Reps and Senators openly cast votes for each other.