Why many programmers don't like GC?

[jmh530]

On Friday, 15 January 2021 at 14:50:00 UTC, welkam wrote:
> On Thursday, 14 January 2021 at 18:51:16 UTC, Ola Fosheim 
> Grøstad wrote:
>> One can follow the same kind of reasoning for D. It makes no 
>> sense for people who want to stay high level and do batch 
>> programming. Which is why this disconnect exists in the 
>> community... I think.
>
> The reasoning of why we do not implement write barriers is that 
> it will hurt low level programming. But I feel like if we drew 
> a ven diagram of people who rely on GC and those who do a lot 
> of writes trough a pointer we would get almost no overlap. In 
> other words if D compiler had a switch that turned on write 
> barriers and better GC I think many people would use it and 
> find the trade offs acceptable.

Hypothetically, would it be possible for users to supply their 
own garbage collector that uses write barriers?