I use names for seeds. Recently I decided to use "DontKnow". Shortly after arriving and exploring the meadows what do I find? 2 Maypoles within meters of each other. Thinking it a bug I go to the map generator and sure enough it shows them. Check it out for yourself. In every other map I created I only found one other Maypole. BTW seed "Sailalot" has a massive starter island with all 5 biomes on it.