is it possible to take all task given? is there consequence if I ignore it all?

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I recieved 4 tasks already and I keep on regreting them never take even one task. I guess its just a waste of time. I'm only here to enjoy discussing things, giving opinions and responding comments to myloters all over the world not to challedge myself with those task given. Does it affect my earnings? Is there a consequence if I ignore all those things?