site examples

[crimaniak via Digitalmars-d-learn]

I tried to run an example from the site. Example from 
https://dlang.org/phobos/std_regex.html#replaceAllInto section. 
And this is problem number 0: I can't give a link to the example, 
only to section. The section can be long, there can be more than 
one example, so it's good to have an anchor for each example. 
Problem #1: "Compilation output (255: Unknown signal 255)
unable to fork: Cannot allocate memory." As I understand it, this 
is a common problem, and it leaves a bad impression. Ok, I copy 
example text and try to compile it. Oh, I need to make main(). 
Ok. "t1.d(6): Error: undefined identifier 'regex'
t1.d(12): Error: undefined identifier 'replaceAllInto'
t1.d(14): Error: 'writeln' is not defined, perhaps you need to 
import std.stdio; ?"
Problem #3: we have imports in the example, but not all imports. 
Ok, I add it. Compile, run. A lot of commas. Is this proof that 
the method worked? Yes. Do these commas illustrate how this 
method works? Absolutely not. This is a replacement method, so I 
expect to see "before" and "after".
It seems to me that examples on the site require additional work 
and in the current form are counterproductive in terms of 
attracting new users.