Post publication on your blog is just the beginning. Now you have to inform about this entire Internet. Of course, you can use social media, RSS feeds, mails etc - but there is one more way, especially for WordPress.
After installing 64-bit version of Slackware Linux, we have ready distribution for running 64 bit applications (obvious!). But there may be some problems with 32-bit software. Installing multilib package can solve this problem. This step should be one of the first operation after install Slackware64.