These are two different issues, though. On the one hand, Forever is saying that he doesn't see anything (generally) to compliment people on. On the other, Coriolis is saying there seems to be no purpose in giving compliments.
I do not give insincere compliments. But I definitely think there are purposes in giving compliments, such as making the other person feel good, informing them that you think they did something well or about a characteristic you admire, creating a sense of good fellowship.
Yeah, okay, I'm totally an INFP being all fluffy-like, trying to see the good in people, but dammit, the idea that y'all would take a sincere compliment from me and think I'm trying to manipulate you makes me sad.
Manipulation is a loaded word, and means different things to different people. When I say I am often suspicious of compliments, it doesn't mean that I always think the other person is giving them just to get on my good side so they can benefit personally somehow. Let me clarify, by considering the motivations you listed for giving compliments.
First is making the other person feel good. I cannot relate to this. I don't want people deliberately trying to make me feel good, or to influence my emotions directly in any way. If I do feel good, that should be a by-product of how they are acting and the overall situation rather than some explicit attempt.
Second is informing them about something they did well. To me, this is the best kind of compliment, because I learn about myself from it. This assumes that the other person has a basis for making it, whether that is expertise in an area where they are complimenting my skill or ability, or with character traits, that they have known me long enough to have seen the evidence for it in my behavior. If they do not, I will be suspicious. If they do, I will take it as positive if general feedback. If the compliment contains specifics, so much the better. Then it really does become feedback, and lets me know what I did well, or at least what the other person found worthwhile, so I can keep doing it.
Finally is creating a sense of good fellowship. I'm not sure how this differs from the first. It is trying to engender a feeling directly, rather than as a by product of actions. I suspect compliments based on taste often fall into this category, say, telling someone you like their jacket or their new haircut, or that you enjoy something they cooked or a story they wrote. (Note the distinction between taste and skill: I can recognize someone is an accomplished musician but not like a particular piece she plays.) This says more about the person offering the compliment than the one receiving it, who undoubtedly already knows his/her own perspective on the subject.
As I mentioned, I am much more likely to give appreciation and feedback, because my goal is usually to provide the other person with information they can use, either to improve, or to help in deciding future actions.