All disciplines have their specialised language i.e. terms that have precise meanings. Some of these terms my be unique to the discipline while others will be terms used in everyday life but repurposed to have a specific meaning that differs from the everyday meaning. This applies whether we are talking about physics or silkworm farming.
To people skilled in ...
I agree with you here Vadim, we could have given the user a benefit of the doubt. Downvoting like a nuclear attack on a user who's on the site for first time is a bit extreme.
I think this was simply an 'emotional' decision on the downvoters side rather than some kind of thought out one.