I am totally new to alt coins - trying to learn something new. I tried searching for this info and c as me up dry.

I was looking into a very new altcoin (will not name as I do not want to shill) and the white paper talked about a liquidity date named in the future. I am guessing this is when the Devs are allowed to start selling their bags?

They did a pre-sale and earned 10x their intended 10 BNB. How does this work? How do you find out about pre-sales and what is the advantage?

They are holding a huge amount of the coin (>95%) in a main account, being very transparent about it. They are using this to make social/community contributions. Is it normal to have the Devs holding such huge bags?

There are no humans listed on the site as the project team. Should this be a major concern?

Thanks!!