It's just helping clean up a bit words that doesn't have much meaning. 
Currently GHCi in GHC 8 is supporting this, so you could write both:

x = 10
x <- return 10

Which is great!

2017-04-17 17:03 GMT+03:00 Sven Panne <svenpanne@gmail.com>:
2017-04-17 14:19 GMT+02:00 Adam Bergmark <adam@bergmark.nl>:
I just wanted to say that there is no need to apologize for making a proposal!

+1 for that, and sorry if I sounded harsh, that wasn't my intention. Proposals are important (we need more of them, not less), and so are discussions about them. Nothing would be worse than a dead language nobody cares about...