Yes. The filter feature only filters posts that are already loaded onto the page. You can have a maximum of 15 posts per page (this is the maximum Tumblr allows). However when users click ‘more’, instead of loading another page, Purify adds the next 15 posts to the bottom of the current posts (making it 30).
Therefore the filter by tag and type will also filter the new posts as well, and so forth. Please note that the filter won’t load all posts of a particular tag or type - only posts currently loaded that match.
If you want to load ALL posts from a tag, then you can choose to enabled “Tags with Permalinks” instead. You can find out more on how to do this here.
The tags are loaded from the Tumblr API, which can sometimes be overloaded with capacity. If this is the case then your tags won’t show up. There is nothing I can do to prevent this from happening as it’s to do with Tumblr’s servers. However, don’t fret when this happens as this happened to me a couple of times during development and the tags will begin loading in again within an hour.
Also, if you have only just started adding posts to your Tumblr - some tags may not show up as a tag has to be used more than once for it to appear on the sidebar. This is so that one-off tags don’t end up clogging up the sidebar.
Infinite scrolling is not supported in this theme due to usability issues. The main feature of the theme is to filter posts by type and by tag. If you had infinite scrolling, then that causes a bit of a mess if you’re filtering as well. For example, if you were viewing all “quotes”, and there was only one, then that would trigger an infinite scroll, but since you’re viewing only quotes, then you wouldn’t be able to see any of the new posts that loaded unless they were quotes.
As you would have noticed, Purify doesn’t show the video or audio players on the homepage (for video posts it will show a thumbnail if it’s a Tumblr, YouTube or Vimeo video). This is because Purify uses CSS3 animations which make the filtering transitions silky smooth, it even works on the iPad!
Having any sorts of flash ends up having problems with the animations, so that’s why I have stripped it out from the homepage. But don’t forget, video posts are nice and big on permalink pages anyway!