I’m sorry, Egor, the whole forum software is new to me. There’s a plugin to allow inline images, but it doesn’t work at all in Safari on Mac. There’s also an anti-bot rule that you have to wait a few seconds between posts, but that shouldn’t affect uploading images (I’d think…).
Maybe for a while it would be helpful to compose longer reports as an email to me, then copy/paste it into a post? I’m using bbPress, which is a very common platform, but if it continues to misbehave, I can change. Older posts may get lost, but it simply must be functional.
If anyone has trouble with the forum, please let me know!