The play style is definitely annoying.
Other sticky nade suggestions:
1) Nerf: Reduce sticky nade clip size or damage, but not both at once (This would discourage the play style and reduce its effectiveness, as well as planting a bunch of stickies on a wall and camping)
2) Buff: Make all sticky nades explode at same time rather than sequentially (Not sure if this is live already)
3) Incentivize sticking enemies: Increase hit detection radius so they "latch" onto enemies easier and do increased damage when an enemy is stuck
Could reduce movement speed with stickies attached, but teammates could troll you this way?
Could have stickies do half-damage when exploding upon death, which might be a simple solution?
Just some food for thought~
Edit: Limiting the # of stickies someone can be stuck with is also an interesting workaround
