Free Signs too Free?

I Have noticed that different ops have been making free signs for other players. I feel that by doing this for items not at the spawn free signs is almost unneeded. Mp, Pas, and I found free signs for iron, gold and diamond blocks two days ago, and I am beginning to wonder, should we let ops give out these signs to regular players? Any feedback (constructive) is accepted.
Also, Do you give out free signs yourself?

I need to find you guys a way to set limits on items that you can give out with signs... maybe free cookies up to 10 stacks. So it doesnt get ridiculous.

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http://ess.earth2me.com/index.php/Sign_Tutorial

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look at the trade sign in that tutorial, maybe set cost to 0

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also, look at the warp sign; quite useful