no they shouldn't
It's better to use less polygons when necessary, alternatively, even though it takes more polygons, the dots can be sunken into the wrapping and just model around the dots by making polygons that go from the edges to the dots
look good in general, sure
it does not look good in blockland
No game's textures look good when seen up close, it depends on the resolution of the texture, for example, you'll see a blurrier or more pixelated texture if the texture is 128x128 and not 512x512 or 1024x1024
Blockland's current textures are 512 (paint can label, player decals, and certain ground textures) and 1024 (brick and certain ground textures)