I never read such comments in that way, the way I read them is actually like feedback to OP around benchmarking against competition.

Personally I love knowing about my competition, and it helps me with how I can differentiate and win over certain niches.

I don't know about OP, but I'm never offended by that, always grateful, helps me craft my message and delivery to the right audience and map out strategy.

I try not to over read into the open internet motivation behind end users, they may become customers, so I rather welcome them and seek to understand rather than judge.