The problem is because of precautions that have been taken by Instagram against spammers. Unfortunately, sometimes other users may be affected by this precaution. Same comments that have been made regularly and those who have been tagged by many users are being blocked by Instagram.
Some individuals and companies especially those who use Instagram for business have started to do spam to get more visitors to their profiles. Bot comments are generally preferred by them. Of course, it is annoying for ordinary users.
Instagram Is Blocking Bot Comments
That is because Instagram has started to prevent those bot comments to make their users visit Instagram without annoyance. If you are a marketer you shouldn’t do spam but if you are an ordinary user and see your comments blocked there may be some reasons.
There are limits
There are average limits determined by Instagram such as 450-500 likes, 150-200 comments, 400-500 followers per day. Old accounts have more limits on Instagram. So, if you have a new account and comment too much, your comments may be blocked.
Tip: You shouldn’t comment too much, set a limit and don’t exceed it in a day.
There are other tips generally you should consider;
You should have a profile picture and description.
If you have sent a suspicious link that may be thought as spam, delete it.
Try to get rid of automation.
I get an error while adding a comment on Instagram
There are various reasons of getting error while commenting. You may be using older version of Instagram. Apart from that if you don’t obey Instagram’s guidelines you may get errors.You can use maximum 5 mentions in a comments, add maximum 30 hashtags in a photo and it is forbidden to post duplicate comments over and over.
We suggest you to read What If I Delete Instagram?