Live view turns itself off after a period of time. I believe with my Nikon it's 30min.

For me, having to press the LV button twice an hour seemed more preferable than flashing the firmware.

The webcam described in the article is so old, it has PAL/NTSC video out. Later generations switched to HDMI, but not all of them have a 'clean feed', so some information regarding exposure settings, battery level etc will remain in the picture.

I believe that the tax law changed in the last few years. Most cameras in use today still have the limit, even though many new (especially higher end) models have unlimited recording.