Pocket is a link saving service. Although it does allow users to categorize and search old links, Pocket shines as a very simple way to save a link to read later on mobile devices.
Con Correct and open export of bookmarks and tags are not possible
This means that Pocket is (currently) a total lock-in.
This is very sad, unfortunate and creates a no go decision for any seasoned user.
Too many bookmarking and tagging companies have stopped or have gone bankrupt these last years (e.g. Kippt, Spingpad, Delicious (to some extent), etc...). So, if you are going to invest a lot of your personal time and energy in curating your Internet findings (i.e. your bookmarks and tags), it is essential that a total, fair and open export (including all tags) functionality is provided. Personally tested the export "feature" and the resulting .html file that Pocket generates currently included only the URLs themselves, i.e. no save dates nor any of your personally curated tags, nor any other useful meta-data.
This is deplorable, because otherwise, Pocket is a very polished and well-functioning piece of multi-platform and multi-device software/app/web service, with a very easy and well-designed and implemented user interface...
Please fix this, Pocket !
These days of open and inter-operable web services, users are only attracted by valuable functionality, clean UX design and no lockins.