On Tue, 21 Feb 2017 09:44:54 -0600, dpb wrote:

On 02/21/2017 9:29 AM, philo wrote:
...

AFAIK there is no definitive answer

The definitive answer is the "workmanship" clause in NEC.
Correct. If it looks like crap, there is a pretty good chance it is.
A properly wire-nutted connection doesn't need tape, so a taped
wirenutted connection just screams "the guy who did this isn't
confident of his workmanship - why should you be?"