AIBU to think posters on some threads are no longer supportive?

[crew2022]

Particularly on AIBU but recently I've noticed OP posts to ask a question. They include some context. Other posters replying either
A) Try to pick apart the thread, highlighting any potential inaccuracy and suggesting the OP is making it all up (even though it's reasonable they might be a bit vague or make some minor details up to avoid being identified in RL)
Or
B) get fixated on debating a point that is NOT the issue the OP wanted advice on

I've noticed this particularly over the last few months. Has the COL crisis made everyone suspicious and uncaring?
Are there more trolls around and so posters are naturally suspicious?
Or is it my imagination?

It’s easier for people to think they can undermine, belittle and be nasty whilst they are hiding behind an anonymous mumsnet account.

Aibu has always been like that but there are a lot more of them about now

And the ones who stalk you and comment on every tiny post so you have to change your user name!?

For me it’s when posters pick up on a (non-offensive) word the OP uses or minor detail that really doesn’t affect the question and nit pick at it relentlessly until the thread is completely derailed and utterly pointless.

Something I hate is when posters excessively search for the OP's previous posts and latch on some seemingly minor discrepancies which in some cases aren't even real discrepancies and then be sarcastic and rude to the OP

Yes all of these points.
It really impacts the person asking for advice.
And then the people doing it say 'well what do you expect, this is Mumsnet'
Not all topics are like this I know, I particularly find some of the ones on serious health conditions are very very supportive and kind to people.
But really, is it necessary to behave in these ways?
The whole ethos of Mumsnet was about support and advice and good conversation (I recall). At least three posts I was following in the last few days have descended into a witch hunt and been deleted.

There was a troll a couple of years ago who intentionally went back to 2008 and resurrected a load of zombie threads and I was surprised to see this exact issue has been going on since at least 2008. It always seems like a new thing but some of the posts from 2008 were absolutely brutal. If anything I'd say the moderation is better now than it used to be so there are less outright nasty posts.

I think it really depends on the answers from the first few posters. If you get one or two scratchy replies it seems to set the tone for the whole thread that other people follow.

I started a thread yesterday about being in the squeezed middle, and everyone posting has given their personal opinions and shared their experiences, everyone has been supportive of one another despite having entirely different circumstances, and there's been no snipers arriving at all. Probably just luck though! I've probably jinxed it now
😂

Yes I hate people who search previous posts in this way.