I really like the increased development pace for Perl5 starting with 5.10. It has led to many nice features in a relatively short time and I´m grateful for that. Occasionally however, the need for speed imho trumps sanity and reason...
In the past, some weirdo things crept in like the overly complex smartmatch, but usually I tend to have a calm look at all these changes and just wait'n'see if I adopt them (I certainly didn´t have a clue if smartmatch was a good idea or not, back when it was introduced).
I´ve still not decided on auto-deref.
This time around (i.e. Perl5 5.20), though, there´s something I practically hated at first sight: Postfix Dereferencing syntax. No idea why - it just looks completely awkward to me.
TIMTOWTDI´s nice, but sometimes less is more.
Unfortunately Perl6 seems to have the same tendency for "syntax creep" in some places: cf. typed arrays. "my num @nums;" and "my @nums of num;" - yeah, ok. But why also "my @nums[-->num];"???
Being able to apply TIMTOWDI on a high level (algorithms, functional or object oriented programming, etc.) is great because for complex problems being able to select a certain solution strategy can make a huge difference.
But so many ways to express the same trivial intention imho mostly serves as a barrier especially for newcomers when trying to understand some published code.