The reliability tag is meant for reliability of measurements, but today https://stats.stackexchange.com/questions/414520/calculating-failure-rate-with-some-failure-cause-data-being-vague (and certainly before) somebody used it in the meaning of "reliability theory", as used in engineering and other fields, and covered by books like System Reliability Theory Statistical Applications.
What should be done here, put a different tag, or are there existing tags for posts like the one linked?
After a day, it seems the question was interpreted very narrowly. I meant not just that specific post, but the tag name invites misinterpretation. We could change the name, maybe measurement-reliability or something similar, and then maybe later, for the technological use, systems-reliability ?
The issues is not resolve, today a post Reliability of a multistate item which uses reliability for what is really engineering reliability ( or systems reliability), another concept. Should I just go ahead and introduce a new tag? What should be the name? engineering-reliability or systems-reliabiliy, or better suggestions? Here https://www.amazon.in/Stochastic-Reliability-Modelling-Applied-Probability/dp/1489998551/ref=sr_1_7?keywords=reliability+models&qid=1578923611&s=books&sr=1-7 is a book defining the tag, more or less.