Is it normal that new PH accounts try to derail your launch?

I've launched on PH today ( https://www.producthunt.com/posts/rubberduck-2 ) and noticed that there are many new accounts that ask 1-line questions in a possible attempt to paint my product in a bad light. There was also a baseless 1-star review.

Is that a common theme on product hunt?

I'm wondering if a competitors is potentially behind this, as it is a competitive space.