Not really to bad of an idea if you think about it, and definitly not unheard of. Not necessarily for company but, think about it, second doesn' have to do anything, and just tr solos up after the line is fixed by the lead soloer.
not at all. it's cool to meet hip with people to see the many way to get the job done. I top rope solo'd quite a bit when i lived in the black hill in the off season. Plus if your by your self who's going to drink the other half of the beers?