Can I add hashtags to my Twitter posts?
Yes, you can add hashtags to your tweets in Twitter Poster.
But be careful with hashtags in Twitter poster. According to the Twitter Quality Policy, they don’t like it when you manipulate with hashtags and add the same hashtags in your tweets over and over again. Therefore earlier we had to restrict hashtags feature in Twitter Poster. With hashtags pool and randomization feature, you can again add hashtags to your tweets.
We strongly recommend using a sufficient pool of hashtags to ensure their randomization in order to avoid penalties from Twitter.
Go to Twitter Poster manual to learn more