TikTok comment sections are part of the content
On TikTok, many viewers open the comments while the video loops, and the top comments are read almost as much as the caption. Comments that add a joke, a missing detail or a sharp question get liked by other viewers and rise.
That is why the drafts for TikTok are short. A comment that needs scrolling to read loses to one that lands in a single line.
Creators can also pin a comment and reply to comments with a video, so a good question can turn into the creator's next post with your name on it.
Commenting to grow on TikTok without spamming
Comment on videos in your niche soon after they go up, when the comment section is small and your comment has a chance to be seen. Write for the video in front of you; TikTok removes repeated comments and can restrict accounts that post them.
Keep your own profile ready for visitors: a bio inside TikTok's 80 characters that says what you post, and a few videos that show it.
And if you post regularly yourself, plan the posts ahead so your comments lead people to an account that is active.