I don't think 4GB is unprofessional per se, it depends what you're doing with it.
It's plenty for a lot of work: I've just logged onto my home dev box and checked, and it's got 6GB, is running hugo and gatsby servers and a couple of Vim instances in tmux.
And out of that 6GB? 5 of it is currently unused. You might say that's because it's headless, but it is what I use for personal development :)
You are talking apples and oranges. The discussion was about not being able to use a quality IDE on the desktop because of only 4GB RAM. An SSH target is a different fruit entirely.
You're right, but the conversation seemed to have moved on to "professional developer" with no further qualification.
For clarity then, I was assuming the original context of the conversation when I commented my opinion that developers sticking with 4GB by choice was unprofessional.
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