Can an expert confirm whether this code is safe? I am currently learning Python so my knowledge is not that efficient.

I've read how it works, it's simple and easy to understand, also re-pumping topics will reduce a lot of time.

I did not understand "interval"? I thought it would be, post "YOUR_BUMPING_MESSAGE" in "YOUR_TOPIC_NUMBER", at "TIME(MIN_HOUR)", Delete "BUMPING_MESSAGE" in "YOUR_TOPIC_NUMBER", at "TIME(MIN_HOUR)."