Publish when there’s data worth talking about. Keep it to yourself if it’s underbaked.
This is not about being rushed. This is about a paradigm already existing that's both better than the scientific method, and ok to use with incomplete information. Bayes. We aren't in the 1700s any more :) the scientific method is pretty cool, but it hasn't been cutting edge for a long time.
It’s truly awful to take Bayes’ namewhen arguing against the very notion of statistical significance.
A peer-reviewed version also may change the wording of the abstract. The vaccine may be less effective on the South African variant than it is on the common strain, but if it's down to 85% from 95% we'll still do fine once a majority of people are immunized.