Guys just curious when someone is shielded, can you still find them and attack them?
For a short (unknown) period of time immediatly after they shield, yes. However, it is unlikely to reduce their score.
Your queue stacks up more than the three people you see in the nodes. If a person shields, he still may be the next one you see after clearing your node, or skipping. It will not reduce their score, since although they were queued up for you prior to shielding, the effect is figured at the actual time that match finishes. If they were queued up, their act of shielding will not remove them from anyone’s queue, hence the fact that shielded people may still see attacks hours after they shielded.
Once a shielded person has cleared everyone’s queues, they cannot be re-found and attacked. Again, it may appear as if they have been, but that effect is due to the unseen queue stack.