It might have sound accusatory but it was not, rather a cautious warning. But if he simply edits the post and add simple line of text adding it's based on existing project, all would be good ;- ).
Why I think it's important ? Because in the recent years I've seen growing trend in certain dishonesty.
And sorry that you don't see it important, but it can actually be considered plagiatory by the original photographer/architect so this is not some personal issue of mine.
Of course he (and many others) don't see it as necessary ,but you honestly don't think that's a practice that should be changed ? Why keep stuff in grey zone ?
If I was architect/photographer of project, and I saw my own project getting compliments under different name, yes I would be slightly tipped off at best. While being credited, I could see it either as compliment or insult :- ) Depending on quality (sarcasm..for you).
Anything else ? Everytime I bring something up and get instantly contra-indicted why I bother, I realize the 3D world is still living in its own ignorant bubble without any hint of professionalism of other industries (like photography have).
If that's fine, continue, I will simply ignore those who do so then from now on.