Stacking of trap-slow and 2xpassive trinket?

[ZanyScum]

Hello,

• Two traps with slow effect at the same spot, do the slow effects stack? Slow+Slow or Slow+Chill or...
  
• Coop, two players with the same trinket, do the passive effects stack, like faster trap reset?

PS: I want the real forum back :(

[Cougarific]

Yes, almost everything stacks in OMD2. Slow plus Chill basically stops them in their tracks. Two faster reset trinkets plus spring traps is hilarious.

[Wyatan]

Not everything stacks.
Web Spinner + Tar for instance don't stack.

And I remember the devs stating that the increased damage from the Coinforge and the Web Spinner don't stack (although I haven't tested it out for myself).

When in doubt, just test out things for yourself.
For instance, both you and your coop partner place down (well, in this case, up) an unupgraded Boulder Chute (resset time 20 seconds). Only one of you takes the trinket.
See if both get affected (reset time with the trinket: 17 seconds).
If they do, then both take the trinket, and see if the reset time drops to 14 seconds.