For info I’m in discussion with another wikidata added who has added a couple of questionable links locally to me.
The same problem crops up in all sorts of areas in OSM - imagine if a number of people carefully add roads to an inaccesible area from all available sources including aerial imagery, and then someone comes along and adds lots more “roads” along every straight line they can see (fences, hedges, etc.) - it devalues the work of the all the people who were careful adding data in the first place.
Personally, I’d only add wikidata tags of things that I was familiar with or had some understanding of. Anything else is guesswork.