If you aren't capable of telling what postings are real/not real (and fair enough, it's a hard problem) what makes you think you can do the same for the replies?
I'm sure I'm not alone in feeling like it's very one sided, and in the current market which heavily favours hirers over seekers it's just another thing going against the seekers. Who often have real concrete stressors like the threat of homelessness.
Either that or remove the rules that by your own words are unenforceable, so people aren't mislead into thinking this board is more curated than, say, indeed or LinkedIn.