What's wrong with walls and doors? when Boyztown was thriving and didn't even have enforced closing times, the music was contained within the bars and did not disrupt those who wanted to chat with the guys and with friends. Or sleep at 0300.
Now, the bars are open to the world; no walls, no doors.. The fashion for letting the music take over the soi is relatively new and began after Thob closed.
The enclosed bars entertained hundreds (BBB, Cockpit/Throb et al). The open bars were entertaining a couple of dozen when I was last there.
At the same time, three gay hotels were being affected to their detriment. Something, by the way, the managers complained about. And were ignored.