Cinelli seems most dodgy in this regard--- as a brand. I have seen all sorts of repainted "Cinellis" on ebay--- usually with no decals.
On the other hand, a repainted frameset has lost its original status and its "value"- so it should be priced accordingly, and you probably aren't getting that ripped off if you end up with a non-Cinelli with nice lugs, dropouts, and tubes-- regardless who built it.
Originally Posted by
fix:
the worst things ive ever seen are people claiming that bikes with cinelli-stamped bottom brackets are cinelli bikes. im sure there are some people who've just repainted something and added decals, but eh. buyer protection probably covers stuff like that anyway.