But still its up to the user if he want to use his smerit and I don't think merit decaying is an issue here since not all care about that since maybe they are not active giving merit to anyone and just give when they see a much more helpful post to the community but on normal day they are not much generous for sending their merits to somebody that they don't know.
If a user does not send his sMerit, that user does not care about sending it and if his sMerit decays by the forum, he will not care about it.
Issue only with decay of merit because it is related to account member rank but the admin does not want to decay either merit or sMerit.
On some point smerit supposed to be sent and not to hoard but we can't force people to do what they don't like or been lazy to do
Forum has monthly sourced sMerit to merit sources and forum community don't lack of sMerit to circulate it.
There are two flows of sMerit, from merit sources and from forum members who are not merit sources. Problems on sMerit circulation only occur if both flows stop.