I tend to overwhelm people when I talk about Homestuck one-on-one so I usually keep it inside.

no

No, they already made the Genesis Tadpole, they just need to go get it from Echidna.

Barcodes mean that they’re clones.  

She made it

The time player doesn’t need to perform the scratch they just need to enter so the scratch construct can exist.

Not in story (not counting Mini-strife)  but in official Homestuck merch, yes.

Are you asking about Homestuck or actual Homosuck?

You are grasping at straws.  It’s just skin because she’s scrunching her face up.

It’s canon.  Every player gets one when they get high enough on their echeladder.  The necklace allows them to summon their sprite anywhere.  It’s customary to give the pendant back to the sprite when the player doesn’t need them anymore which is why Davesprite has his.