ask for genuine mastodon software
https://files.mastodon.social/media_attachments/files/007/571/750/original/68c42db72a17c848.png
If you can post toots longer than 500 characters, beware! Your instance isn't running genuine Mastodon. Instead of worrying about what other modifications have been made, let us help. You can find genuine Mastodon instances at instances.social.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.