Speaking of hashtags, you may already know they have become such a common practice these days that people have started using them in text messages, chats, songs and advertisements.
A hashtag is a word or an unspaced phrase prefixed with the hash character (or number sign) # to form a label. It is a social media tagging system that categorize the content.
An example of a hashtag is #SMM. The term hashtag can also refer to the hash symbol itself when used in the context of a hashtag.
For social media users, hashtags are a way for them to tag their posts with keywords, which in turn make them easier for social networks to organize and other users to search,
Although it’s easy to quickly create and send out a post with a hashtag in it, but there is some basic etiquette when it comes to using them.
As it said social media platforms using hashtags to organize data and make it easier for user consumption. However, each network has a different tweak on how they use them.
Courtesy of: Quick Sprout