Snare! says ,"If accessed from R&D the runner must reveal it". It then allows the corp to pay 4 credits to give 3 net damage and add a tag. It also mentions to ignore this affect if Snare! is accessed from Archives.
This confuses me a little because I am not sure what to do if the card is accessed from a remote server or from HQ. Do you still get the option to give damage and a tag if it is accessed? Why then would it specifically mention R&D if there is no difference than HQ or a remote server?