Cache issue

Hi Marcin,

There is nothing wrong in your screenshots, the values are kept on WordPress even if the date is expired, there is no auto-purge on WordPress, but when the value is fetched if it’s expired it will fetch a new one.

So:

1. It’s perfectly normal if you have a lot of values in your database.
2. it’s dangerous to have a low cache expiration and to clear the cache often because you can hit the API limit faster.

Regarding _transient_timeout_* values I’ve updated 1.3.6 to clear these values but it’s not really an issue.