Anytime in future I wanna take part at all the IDOs. So do I have to buy for example at least 250 POLS and what do I have to do then?

if you have a min of 250 pols or more and staked or if you hold is fine also - you can join all of our IDOs. But you have to be allowlisted first, of course. Staking gives you instant access to apply allowlisting Holding - you have to wait 7 days to be eligible to apply allowlisting. You can check this video as well for more insights on how to join our IDO: https://youtu.be/xy2jhWKuzpI Check here for more information on participation as well: https://blog.polkastarter.com/how-to-participate-in-a-polkastarter-ido/