It's not really decriminalized. While you don't have to fear criminal prosecution in most cases (unless you're in Bavaria) they will punish you by taking away your driving license, even if you never actually drove under influence.

not just that: employers, insurances and banks could use this information against you (police record = bad business)

"decriminalised", but given "right circumstances" will screw you for years

If you don't have a driver's license what else can they do to you?

Leave a mark in your police record, something that might impact your odds of getting a job in a lot of industries.

It's similar here in Sweden, even though Swedish policies are much more draconian against drug users (supposedly the most draconian from all of OECD countries), weed consumption as a regular user will probably not lead to prosecution and/or prison time but it will be registered in your police record for 5 years and impact your life in multiple ways.

How hard is it to imagine that an hn user is not based in the us?

How hard is it to imagine that an hn user is referring to "here" as hn?

very easy since I’m not.

what did you understand or infer from my message?

this question tells more about your own biases rather than the commenter above honestly.

we should probably put on our thinking hats and use the powers of deduction to figure out he is in place where it is not legal

It is not obvious though if they mean Germany, where it is still illegal right now, and they are looking forward to the change, or if it is another country where it is illegal right now and the would like to see the same change happening.