Hi @drorion,
thanks for your feedback!

Voting for parameters is just optional for participants, especially for people who participate with a lot of Steem Power and just don't wanna run their own witness server. Of course this process is only optional!

I completly agree, that it's very technical blockchain stuff and isn't very clear for average user.

Therefore I'll post a more detailed post about what this technical parameter does actually mean and what they affect for better understanding.