FitFluencer is inserting weird characters at the end of my comments. Why is this?

FitFluencer is inserting weird characters at the end of my comments. Why is this?

You must have many defined comments to avoid temporarily bans from posting comments on Instagram.
To prevent any limitations on posting comments for your account, Our service tries to put some characters such as dots and exclamation marks at the end of your defined comments. especially if you have few comment templates. That’s because you can NOT post the same comment multiple times (including emojis.) This will result in getting a temporary comment ban.
You can reduce this behavior by adding more comment templates inside your promotion settings.