The results are in. A short thread.
Thank you for contributing to this in various ways, including important comments under it.
First, it's an informal Twitter poll, as we can see, not research. But nearly 1000 people have answered here.
A big majority voted for traumatised/ https://twitter.com/AnnMemmott/status/1322089326533087232

The thing that concerns me, and a growing number of colleagues in professional and support roles, is that 'taking the autistic person's stuff away to make them comply' is seen as a 'gold standard' of how to improve our lives.
It is a key feature of ABA and often PBS plans/

https://dds.dc.gov/sites/default/files/dc/sites/dds/publication/attachments/Identifying%20Preferred%20Reinforcers.pdf is an example out of thousands out there, showing how our alleged 'bad behaviour' (usually from pain, exhaustion or distress) can be altered by using our 'highly preferred' reinforcer. And how to get that info about what we prefer. Let's look/

/Here's a video showing what the team does with a child's most precious toy, to get compliance. Content warning.
Watch the doll. Watch the behaviourist prising it out of the child's hand and holding it to ransom. Up to 40 hrs a week of this.

This is called a 'positive' intervention, because it does not involve physically punishing the child for refusing to do precisely what any adult tell them.
Now go back to the graph at the top of this post, and reframe whether this is 'positive' for the child.
Trauma?/

People have been quite astonished that autistic people are generally against Applied Behaviour Analysis. Here is a survey by Chris Bonnello, which you can find at https://autisticnotweird.com/2018survey/ 
Is it now, after seeing that twitter poll, even remotely surprising that there are concerns?

No-one asks the autistic people what it's like.
They just do it to them, and any 'behaviour' that results is framed as 'that's just their autism', or 'it's fine - it gets worse before it gets better'.
The 'better' for some is learned helplessness, and a really bad thing.

So, what can we do, here?
First, if you are doing this to an autistic child, please consider collaborative working with autistic individuals so you learn ways that are helpful instead of very likely to be traumatising.
Second, if you have experienced this, I am so sorry/

You did not deserve to have something of vital importance for your health and wellbeing taken from you to be used in this kind of way.
Find good support if you can, with people who are on your side.
Know it's OK to mourn what is lost, and to grieve deeply/

For 2 years I worked with an organisation that did this to the children. I saw it at first hand.
Like many others, I am now advising v different ways of working. Ways that respect autistic minds, and enable thriving, not utter obedience nor methods people list here as traumatic.

I am glad of working with so many colleagues who are moving firmly away from those compliance-based methods, and into better ways.
If you are a parent, ask whether 'highly preferred items' are used to enforce your autistic child's compliance.

Move your child to a better place.

Want more on what autistic people may think?
Other big poll results from my page and one or two other places on here. https://annsautism.blogspot.com/2020/09/so-what-might-autistic-people-think.html
We should have known.
We should have asked.