I've got to find out that there are some profiles that have received whole lots of merits but some of those profiles don't circulate their sendable merits to others profiles thereby allowing the sendable merits to decay and become worthless.
How did you check it? if you only check by clicking their merit history, it's not accurate because the forum only show last 120 days activity. Moreover it's the user's right whether he want to spend his sMerit or not, there's no obligation sMerit must be spend.
Even though it was mentioned unused sMerit could be decayed by the administrator, but there's no proof someone claimed if his sMerit got deducted.
There is no point in hoarding sMerit; keeping it yourself does not benefit you, and we reserve the right to decay unused sMerit in the future.