The thread began with a question regarding splicing 8/3 for ovens in new construction to use up small scrap pieces of wire to save money.
I also agree it reeks of poor craftsmanship.
I was in a newer residence, maybe 4 years old a few months back, homeowner hired me to finish basement. All new stud walls framed in, egress windows, 2 bedrooms a bar and bathroom. I had to demo out existing electrical which consisted of maybe 10 - 100w keyless lights and few switches scattered around.
Also consisted of: 2 - 8/3 splices in 4 11/16 boxes to range upstairs, (exact scenario the original thread question asks) and 10/2 spliced in a 4square metal box running to ac, also a spliced 4square box for the 10/3 to the upstairs dryer, and believe it or not there was an open splice in the low voltage to the thermostat upstairs.
What a pain in the arse and extra cost to repull all these runs as the homeowner wanted a finished basement without blankplates peppering the ceiling. I thought "what a frick'n moron, who wired this place?" As I said the "House was only 3 or 4 years old."
If that doesnt reek of unproffessionalism then I dont know what does, even to suggest or agree that you as an electrician would do such poor workmanship speaks volumes. At the absolute worst, maybe throw a splice in the attic or a crawl space, but never in an unfinished basement.
BTW: This is newconstruction we are talking about.
And on another note, the original contractor was not ashamed to put his company name and phone number sticker on the electrical panel. Me and several other electricians laughed our butts off repeating this story, what a joke electrician this guy is/was pulling a stunt like that on brand new construction. Word travels when you do poor work faster than when you do good work.