1) I'm no researcher - I'm convinced though that the amount of noise in ML research is intolerable. Every little
2) A very important procedure in other scientific fields is to repeat and validate results of a previous work. I don't recall an example of this in ML.
4) If one wants to build a good model for something in the real world (!= research, of course) the Bishop "Pattern Rec and ML"
Also, twitter's ML community can produce an anxious fear of missing out. Reality is way more chillaxed: relevant concepts are scarce by definition.