[GodGunsGuts]

I'm not sure what you are referring to. But there is a big difference between using a graphic to illustrate, and using a graphic for propaganda purposes. You can also use a graphic as evidence, such as the graphic I posted above illustrating the overt racism of Darwin propagandist, Earnst Haekel.

[tacticalogic]

One man's "illustration" is another man's "propaganda".

My disagreement with using them in a debate is that I consider it a coward's tactic. You don't have to defend what you're saying if you never really said anything.