@coinomat.com,
By saying 75 symbols, do you mean that we need to make a post with more than 75 characters?
Yes, 75 and more.
But while we are counting posts "by hands", we ll not really count every letter.
This sentence is just some kind of protection from non-constructive posts.
If post will be good, but it will be 70 letters. It's ok. Just it's not easy to write smth good in "two words".