Can't get used to the practice of checking messages and sending them to spam on everyday basis.

It's a poty that this buttons do not learn any of your spam filters. It does not tblacklist domains. It does the very inefficient thing: blacklists the address. Why? There is no use of it. Spammers may generate email names every second. Blacklisting domains manually is not very good, because you can miss a domain and you do things twice: send email to spam, than blacklist domain. 

How can we concentrate on reading email messages?