You here all week or was this a one night show? LMAODepends. If you set it in concrete, best practice may be to use the skid steer. If it is a steel post, you might wrap a chain around it and then leverage it out using the tilt function. If hollow pipe, and you don't want to keep it, possibly cut a "birds mouth" in the bottom of the pipe and again, leverage out.
May want to use a shovel to loosen some of the soil sound the base before removing.
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I'll see myself out now.