Before you read their replies, let's look at results from a study by Social Bakers, which examined how Facebook engagement correlates hashtag use. (Takeaway: too many hashtags lowers engagement -- and won't help you get more likes.) Posts with 1 or 2 hashtags averaged 593 interactions. Posts with 3 to 5 hashtags averaged 416 interactions. Posts with 6 to 10 hashtags averaged 307 interactions.
https://www.postplanner.com/how-to-use-hashtags-on-facebook/
Tagged in over 330 million posts, #TBT (Throwback Thursday) is one of the most used hashtags on Instagram and a perfect nostalgia marketing opportunity. If your brand has a past, use #TBT to share it. If your brand is brand new, you can use the hashtag to dig into the history of your products or industry.
https://blog.hootsuite.com/instagram-hashtags/
All the words that are preceded by a #hashtag will be tagged. P.D: Here is an example of my own presentation text uploaded on 28.01.2011. As you can see, I have used many different hashtags to let other users know about the most important details of my Instagram personality.
http://instagramers.com/destacados/how-to-use-hashtags-in-instagram/
Some originals and fun #hashtags. #100likes, #200likes or #300likes. Add these tags to your pictures when they reach 100, 200, 300 or more likes. This will make it easier for users to find pictures that have reached these numbers.
http://instagramers.com/destacados/how-to-use-hashtags-in-instagram/
Instagrammers aren’t as susceptible to hashtag fatigue as Facebook and Twitter users are. According to a TrackMaven study of Instagram accounts with 1,000 followers or fewer, posts containing four or five hashtags received an average of 22 interactions compared to 14 interactions on posts with zero hashtags.
https://blog.hootsuite.com/instagram-hashtags/
But many Instagram users have also caught onto the fact that more hashtags can mean more reach and likes. So, they’ve overloaded their photos with as many hashtags as they’re allowed—which is reportedly 30. You don’t want to use 30 hashtags on a single post. You don’t even want to use five hashtags on a single post.
https://blog.hootsuite.com/how-to-use-hashtags/
(Takeaway: too many hashtags lowers engagement -- and won't help you get more likes.) 1  Posts with 1 or 2 hashtags averaged 593 interactions. 2  Posts with 3 to 5 hashtags averaged 416 interactions. 3  Posts with 6 to 10 hashtags averaged 307 interactions.  Posts with more than 10 hashtags averaged 188 interactions.
https://www.postplanner.com/how-to-use-hashtags-on-facebook/
In fact, the hashtag is so recognized that it was added to the Oxford dictionary in 2010, and the Scrabble Dictionary in 2014 (#official). Yet even as most people have come to know what they are, many people still don’t understand how to use hashtags.
https://blog.hootsuite.com/how-to-use-hashtags/
As you may already know, the Instagram team recently launched a new version of the App. (28.01.2011) This new version fixed some basic problems: – It added the possibility to delete “comments” individually instead of erasing the entire comment stream linked to a picture. – You can now ban any user.
http://instagramers.com/destacados/how-to-use-hashtags-in-instagram/
How to add a hashtag to an Instagram post. Hashtags can be added to your posts as captions or comments. Assuming your Instagram account is public, a hashtag will make your post discoverable on the corresponding hashtag page. To tag a post with a hashtag in the caption: Take or upload a photo or video.
https://blog.hootsuite.com/instagram-hashtags/
how many hashtags can you use on instagram
You can use 30 hashtags on Instagram.