Update README.md

README.md

@@ -24,14 +24,16 @@ In addition to the messages, some metadata was provided for convenience, as well
 
 Consider this a **work in progress**. I might update the dataset in the future as I improve the cleaning procedure.
 
-# Limitations
+# Limitations and issues
 During the scraping procedure (occurred on April 2023) some information like text color and links was lost in the process. Most of the data is adult-themed, and given that usernames inside the posts still exist, it would be best if usernames weren't directly used when training a model with this data.
 
 Given the text formatting used by many users, complete and thorough conversion to Markdown seems very difficult without losing information in the process or causing other issues.
 
+Due to the nested structure of the data, I had to split the original parquet file into smaller ones in order to avoid issues when loading them with `pandas` in Python (via PyArrow). This appears to be a [documented problem](https://github.com/apache/arrow/issues/21526#issuecomment-2350741670).
+
 # Basic usage
 
-The files need PyArrow installed from pip. FastParquet will not work properly due to the nested data structure (I might change this in the future if it's too much of an issue).
+The files need PyArrow installed from `pip`. FastParquet will not work properly due to the nested data structure.
 
 ```python
 import pandas