@Miller,
I'm not sure what you mean by "today" -- there is more and more consensus, since this was written, that antibiotics are overused.
There are two separate situations when the ear drum would be purposely punctured.
Tubes create a semipermanent hole in the eardrum so that any fluid that develops from middle ear infections can drain.
Separately, one treatment for severe ear infections is to purposely puncture the ear drum, allowing the fluid to escape. This relieves the pain associated with the pressure of the infection pushing the eardrum outwards, and also usually restores hearing. (Punctures usually heal fairly quickly.)