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My impression was that we should post anything that isn't incredibly out there (I.E. Things appropriate for /b/), and people choosing to follow/ignore each other should take care of the rest.
So if you want many people in the community to take interest in you, memes would probably be the wrong way to go, most post written articles/videos that have depth to them. However, no one will stop you if you wish to do so. If anything else, posting cats will probably be a good way to test hubski's new ignore feature, but I wouldn't count on it to help you integrate with the community.