Of course, all children do things which are naughty at times.
But I was responding to LastTrainEast's post a couple of pages back where she said:
"I can't help noticing that there are no naughty children any more as they are all suffering from some condition or other."
And so I am not talking about occasional naughty/bad behaviour but about the idea that there are children who are "just naughty", I believe this is outdated, it's also a really damaging view of those kids, who were generally in the past written off for life - and it's good that we now understand that children who persistently misbehave are likely struggling - whether that's because of some kind of special needs, whether it's because they aren't getting clear guidance or whether they are experiencing something traumatic such as bullying or abuse at home.
And yes it can sometimes be fixed with clearer guidance or more stable parenting, but basically everyone on this thread with experience of CAMHS has actually said this is generally the first thing they want you to try - but IME if you have got to the point of contacting CAMHS you have probably read a parenting book or two, and tried out various techniques with not much of a result.
But also - neurotypical kids can cope with a massive amount of flexibility in parenting and will generally come out alright. It takes some quite seriously, shockingly bad parenting to make a neurotypical child behave persistently badly as a response (and in that case they are often so affected by that parenting that they actually DO have some kind of condition directly caused by it - attachment disorder for example, or complex PSTD) - most children do absolutely fine, even with inconsistent parents, not very nice parents, slightly absent/neglectful parents, and so on. They would probably do even better with good parenting. But children who struggle in the first place need a very specific and intense kind of parenting and it's likely most mainstream/ordinary kinds of approaches aren't going to do them very much good at all.