To the suggestion that we lose gv perks on spawn, uhhh no. Apply that logic to losing perks for upping planes...You'd almost NEVER see another Tiger 2 except on concrete again.  It's rare, but I do run into them on occasion, 
Looks like all the typical comments/arguments/etc are here: 
Make a good suggestion to be pondered, get shot down by many who refuse to think/consider it, remain hangar queen...