The ping is always there, yet many factors affect it, sometimes it's muted, sometimes it only appears in silence
I like stuffing my keyboard with stuff, I even love it, especially adding things that add a bit of a bulk, yet ping-wise speaking, it's pointless, the springs and the plate is going to ping the same, only the bottom out sound might be improved
Thick keycaps mask the ping well, dcs keycaps mask the ping better, o-rings absorb the force and reduce the ping, yet stuffing the keyboard is pointless in terms of ping, IMO