Noticed this while logging to a huge container. My application was starting to consume around 500 MB for a simple 'hello world' app. If you log to a container with many files, (in my case a couple of million blobs), then the library ends up holding in memory a bunch of BlobItem and BlobItemProperty objects pointing to what looks like the entire container.
I can open a PR to address this but I need a little bit to finish some current work, I'm opening this as a reminder to myself and a note to others in case they run into the same thing.