I'm confused on why TikTok says "You're TAPPING too fast. Take a break!" when you like too many videos

The software waits for tapping (called event listeners in programming) which the code then interprets. A tap can be a share, a like, a repost or anything else.

My thoughts, it’s simpler to read taps instead of a specific action and consider all too much tapping bad for adding strain on the server and looking spammy.