Soundgarden guitarist Kim Thayil took a thinly veiled shot at Smashing Pumpkins and Billy Corgan in an interview with the Dallas Observer.

Thayil was discussing Soundgarden's songwriting process.  He said:

"We feel confident that if the four of us all like an album, it's going to do well. We don't have one member who is deciding the composition of an album. You should know who I am talking about, but I am not going to name names. We have four guys who write songs here. We have four guys contributing material without someone calling bullshit on it. You follow me? There are many bands out there that are led by one guy who does all the writing? He might have some religious epiphany or some psychedelic experience and he will write all this material that can very easily suck. And the rest of his band feels like they have to play it. That is not Soundgarden. Consequently, we have never made a record that sucked."

When Soundgarden reunited, all of the members of the band's classic lineup returned.  But, there were outsiders who questioned the band's motive for reuniting.  Most notable in his criticism was Smashing Pumpkins' Billy Corgan.  Corgan claimed that Soundgarden reunited "only to make money."

Songwriting duties are shared in Soundgarden.  But, Corgan has written almost every Smashing Pumpkins album and he is the only remaining original member of the band.