I've actually seen thumb tacks used in the exact contact areas with a high degree of success. With the right metal color to match the finish of the bass, thumb tacks can be almost invisible. And of course, a person has to decide if the look and the little hole is better than the damage without.
My DB is metal, powder coated, so I can't try thumb tacks. I don't mind putting the bass on its side on carpet or nice floor, or even soft sand or grass, but I don't particularly enjoy putting it on its side on gravel, or on a cement or tarmac slab. I do usually bring and use the folding K&M 14100 stand for gigs with excellent success, but I'll watch it like a hawk and often find another more protected location for it if there are lots of people around, or if it's windy.