One of the best purely SFW imageboards e-shuushuu.net already ripped in full (unfiltered, unconverted) releases
2019-2020 111 GB with ALL metadata
2016-2018 189 GB
2014-2015 155 GB partially overlap with the next one
2005-2014 380 GB
Years ago e-shuushuu was very active, now it lost it’s leadership and most of activity, but still the best by image selection.

To advance rips to current sate, this UNZIPPED release contains:

• 42.639 images for 2021-2022 (ID 1.046.967 - 1.089.995) distributed by directories (~1000 files each) not filtered, not converted
  • files name contain ID - up_to_3_copyrights ~ up_to_5_characters (up_to_2_artists)
• post metadata ess_posts_2022.tsv in text TSV format 43.013 rows
• parsed tags metadata ess_tags_2022.tsv also Tab Separated Values 564.081 rows

NOTE a lot of files not easy to handle for torrent clients