Submitted a new version of puzzler 26 based on the original submission (https://github.com/scalapuzzlers/scalapuzzlers.github.com/pull/55) by Vassil Dichev
Reserving 26 for a Scalaz puzzler (see https://github.com/scalapuzzlers/scalapuzzlers.github.com/commit/970508082c8b81db1980117a7a4489c249d03ea4#commitcomment-2118399)
Updated #27 for more LOL, less loll.

This is not a definitive version, except for the title.

There are some style differences, like one-liners, reduced use of
braces, and an implicit class to enhance StringBuilder.

In a LOL vein, padTo is renamed pad2, and it is compared to the
padTo out of the box. (It must be renamed for the extension method.)

It seems to me that's worth addressing.  The tradition of puzzlers
is broadly educational.

Does this puzzler result in a pithy Effective Scala meme?  I feel
it ought to.  Maybe something functional like: "Be results-oriented."
Because not attending to a result type is the error.  I added the
suggestion to add type info to express expectation or intention,
to extract compiler help.

I don't think the Eclipse IDE has a mode yet where it shows all the
inferred types, the way it will show implicits.

The other thing that always comes up on the ML is, Can I already do
this with existing API.

Footnote, I originally assumed that r foreach sb.append(c) looked like
r foreach sb.append(c).apply, which is wrong. I could imagine adding
-Xprint:typer output so that people are aware that it's normal to
consult it.
Suggested changes and clean-ups, and expanded CBF discourse
Suggested comments and clarifications
Merge pull request #58 from scalapuzzlers/cast-away

Submitted a new version of puzzler 26 as puzzler 28
Added Puzzler 28 ("Cast Away"). Thanks, Vassil for the submission and Daniel Sobral and Paul Phillips for comments!
Replaced one of the answers for #16 with 'Does not compile', which seems to be a common reaction
Merge pull request #61 from scalapuzzlers/update-16-answers

Added option 'Does not compile' for #16
Slight update to 'Does not compile' answer for #16
Merge pull request #59 from som-snytt/puzzle/i-can-has-padding

Updated #27 for more LOL, less loll.
Small additional comment on a CanBuildFrom explanation for #27
Updated title for 'Keep On Padding' -> 'I Can Has Padding?' (see also e56baa467f)
Small punctuation change
'sameSb' -> 'sbAsFunction' in explanation of #27
Updated comments in explanation for #27 to avoid line wrapping
Avoiding blank lines at the end of puzzlers 25, 27 and 28
Aligning spelling of 'stackoverflow'
Removing spaces before the closing 'code sample' section tag to avoid a blank line
Aligning position of <pre>..</pre> tags around puzzler code samples