Like the topic states, I've an issue with Sinews.

They cause the corpses of monsters to remain, stacking up over time and it creates a lot of lag if I'm right.

I'd like to see them removed, or Hans and other Merchants could sell them.

I agree that hans might want them to bundle wands of beef with for shipping. i would argue that it also does cause lag as most players leave the sinews around.

I agree they add a touch of realism to the module, but I don't see a place/npc that really makes use of them.

I totally agree! Something must be done! Even if they were sellable for 1 gold to the merchants people might pick them up.