Welcome to Steemit. You have a lot of valid questions. Many of those have been covered by other community members here. The search function will scour all the steemit posts. It's pretty amazing the amount of stuff people have written about the platform.
Second, I think my reviews on different cryptos are worth sharing to the wide audience.
I would be interested on hearing a software developers take on this. Do you also develop or work with blockchains? I know of a few projects that are looking for experienced devs. If you are interested, I could get you in contact with them.
I think you will do very well here. You are already knowledgeable about crypto, and it was told to me when I first got here to write about you know!
Steemit is a social media platform built on a blockchain. I think that blockchains are going to change the very foundation of our lives. I think that since steemit has such a strong community, and they are always trying their best to make the platform better . . . that we will be around for a long time. I'm sure other experienced users can fill you in on the the more technical matters. I'll leave it to them lol
I resteemed your post for you to get more exposure. And welcome again!!
RE: Reasons I am here, my concerns and impressions.