Ok that's nice to know.
No, I've done many tutorials and guides to "reset" the tiny. Yes, there have been instructions to burn the bootloader to the tiny via the arduino IDE...
But I can surely say that there wasn't any operation which was successful! Neither flashing a sketch to the tiny nor burning the bootloader has ever been successful.
For me, that's a little bit confusing because I'm not even able to read the fuse bits (avrdude says extended = high = low = 0xFF...).