So if I don´t use it, trading won´t get more complicated for me?
Like a manager who decides not to offer or to include draft-picks in a bargain he put in the NBA, the same is true here.
You don't want to get a draft-pick, you will not get any, but the market is also open for those who wants.
You don't want to sell a draft-pick? Then don't. Other can, and you need to cope.
1) I´m selling.
2) I´m not online at the trade deadline.
3) Multiple users offering their picks, one offering money straight up.
-> How to judge?
How will the system judge MY own system of valuing the picks?
That had already been answered.
Any new team crooked by one of those draft pick trades is more likely to leave the game and quit, feeling tricked and betrayed by the experienced users. "Oh, great, I get a new draft pick - NBA teams are doing this, so it has to be good !" - and then on draftday, they have a hand fulll of 19 year old benchwarmers and no team at all. Bye bye Buzzerbeater.
Again you (not specifically, but as part as the known group) are trying to scare the BBs with ridiculous argument of "they will leave the game".
A user agreeing to get draft-picks, know its implications. How much money it is worth, what he can get, etc.
Like any decision he take, he will do that as well.
This game is being played for experiencing the BB-managing world.
Main features of BB-managing like that are the core of a BB-managing game.
Users will lose interest in this game, if they could not identify it from an eBay-game.