1) If a preamp tube's pins are slightly bent, but still fit properly into their slot, does it impact the tube's performance in any way?

2) Is there a need to clean out tube sockets? If so, how?

Epiphone G-400
GFS Crunchy PAF - Bridge

DigiTech Bad Monkey
iSP Decimator

New Amp Fund: Depleted
1) No

2) Not sure, but don't go pokin around in there unless you know what you're doin.
Baron K2 SE 120
MILLS 4x12 Afterburner
Eventide TimeFactor Delays
ISP Pro Rack G Noise Suppressor
BKP Warpig pickups