Isn't this directly against WP:NOR, specifically WP:TERTIARY? Every fact must be supported by reliable first-party source, and the idea's provenance is that source.
In the research, there are often long paths that lead to the ideas: lunch room conversation -> paper 1 -> web search on term seen -> paper 2 -> web search on another term seen -> wikipedia page -> another wikipedia page -> original source (paper 3) -> paper 3's citation list -> paper 4 -> fact for your own paper
We always cite only the very last item in the chain, paper 4. I'd might cite other papers I've seen, but only if they are relevant. I was taught that the tertiary sources, like encyclopedias, are never to be cited, unless they have original facts which cannot be traced to other sources.
In the research, there are often long paths that lead to the ideas: lunch room conversation -> paper 1 -> web search on term seen -> paper 2 -> web search on another term seen -> wikipedia page -> another wikipedia page -> original source (paper 3) -> paper 3's citation list -> paper 4 -> fact for your own paper
We always cite only the very last item in the chain, paper 4. I'd might cite other papers I've seen, but only if they are relevant. I was taught that the tertiary sources, like encyclopedias, are never to be cited, unless they have original facts which cannot be traced to other sources.