What's the specific desired forum improvement here?
I think they made that clear- for people to consider what they're saying and, who they might be saying it to- before they post. I guess one test would be- how would I react to this if someone said this to me?
Sadly, there are trolls everywhere on the internet OP so, some of it you may need to just brush off as someone trying to poke about for a hurt or angry reaction. I suppose the interesting question is why they feel the need to do that. That doesn't scream mentally stability either.
I've fallen into the trap of overstepping the mark on occasion though to be honest. We should probably all be questioning how reasonable we're being when we make more personal comments.
I think it can also be tricky here though. Not to blame an individual but, some members literally seem to be asking to be taken through a method, step by step for instance. Seeing as assisting a suicide is illegal in many countries and, certain countries are becoming more like nanny states (the UK for instance,) it can also feel troubling to feel 'baited' to overstep the mark.
Not a good excuse but, longer term members may also feel fatigued at the weekly/ almost daily round of: 'Tell me the best way to kill myself' (in detail preferably and with sources.) Again, because it's baiting assistance and- it's against one of the first rules they must have read before joining.
It's effectively asking a total stranger to put themselves at (possibly 14 years in prison) risk- if they do actually overstep the mark when- the information they will likely be sharing is already here to read. Most people I would say, believe that suicide is a risky choice that we need to read up on and, make the decision for ourselves.
That's not to say that's the reason you're getting cynical remarks- you shouldn't anyway of course. But, it's one of the motivators here I think for short, sarcastic replies.