While it's not against the rules, a little thought on this:
Backprinting (for non-keychains) was first introduced in 1997 (a promo figure for the Island PC game) and 1998 (with X-Treme and RES-Q). The feature remained relatively rare until ca. 2010, mostly limited to licensed figures which really depended on it (like Spider-Man or C-3PO).
Back then it was "special" so many fan-sites felt it useful to include it in part names.
Since then, things have changed. Nowadays, it's hard to find a torso WITHOUT backprint. Given this abundance makes the inclusion of the word in names or keywords somewhat redundant if you ask me.
As pointed out before, the heads with switchable faces are a bit more special in that regard, since it's an actual "function" (as opposed to heads with an exposed printed backside, like Dwalin, Foot Soldier or Sugi for example).
Backprinting (for non-keychains) was first introduced in 1997 (a promo figure for the Island PC game) and 1998 (with X-Treme and RES-Q). The feature remained relatively rare until ca. 2010, mostly limited to licensed figures which really depended on it (like Spider-Man or C-3PO).
Back then it was "special" so many fan-sites felt it useful to include it in part names.
Since then, things have changed. Nowadays, it's hard to find a torso WITHOUT backprint. Given this abundance makes the inclusion of the word in names or keywords somewhat redundant if you ask me.
As pointed out before, the heads with switchable faces are a bit more special in that regard, since it's an actual "function" (as opposed to heads with an exposed printed backside, like Dwalin, Foot Soldier or Sugi for example).