To deem something overpopulated is to insinuate that the additional users somehow lessen the experience for the existing members in one way or another.
While it may be true that there is indeed a steady increase in the Facebook population, it is difficult to declare the site overpopulated.
These are the users who make the claim that Facebook is recently becoming very overpopulated.
In reality, however, a website cannot be truly overpopulated unless the number of registered users reaches a point that causes detrimental occurrences to the rest of the members.
Some Internet users make the claim that Facebook is recently becoming very overpopulated.
