Not exactly deliberate.  I’ve noted that the https://hdyc.neis-one.org and https://osmstats.neis-one.org websites flag a level 3 issue of concern between a turning circle and a node on any way, be it a driveway, footpath or even steps.  This disappears if a noexit node is placed by the turning circle.  As https://hdyc.neis-one.org and https://osmstats.neis-one.org  represent a measure of Quality assurance for OSM mapping, a lower level 3 issues of concern has merit.