It is proper Netiquette to do everything in in moderation. Do use moderation. Don't be extreme.
Moderation is restraint from extreme behavior. Moderation in Social Media is restraint from extreme online activities within a given network.
Social Media posts can be extreme in nature and excessive in quantity. This is not moderate. Moderation is a privacy setting as well. It denotes a status that lets you review comments by others before they are published publicly. This is a setting for walls and blogs. Most Social Media accounts offer moderation.
Moderate posting is politically correct material posted no more than twice a day. Excessive posting is more than three posts a day. I have found that three posts a day works great on some networks. Posts of extreme nature are politically incorrect posts.
Do everything in moderation because it promotes good content. Moderate content.