Thanks for getting back to me. OSM does map difficult trails using a sac_scale. See https://wiki.openstreetmap.org/wiki/Key:sac_scale

I understand that someone with little or no experience shouldn't be using difficult trails. Those trails should be tagged accordingly. Removing the trails just invites someone else to add them back. Especially those with Strava heatmaps. At least one of the trails removed, claimed they used Strava heatmaps to align the trail.