I am currently being attacked by multiple accounts (seems to be one person) with offending messages. Beware.
Blog Comment It says "but tourist and ksun solved them including petr".
Then, one message came to me:
(Note that this account also starts the sentence with lower character and doesn't use capital P for Petr).
(Obviously, this account's writing style is similar)
And then it escalated:
(They seem to like referring to ksun48, aside from tourist and Petr).
These acts are definitely violating the rule of "Rudeness, insults and intimidation are prohibited.". Also they seem to be one person using multiple accounts. Codeforces admins should deal with these issues, or at least implement "block users" features.