Ответчик (Respondent); Rights: Edit answers forum / discussion walls, Close (renew) topics on the forum / discussion wall, switched on (off) notification about the topic. Can give: sysop, bureaucrat

Need to answer the participants on their questions. Since the respondents often watching topics of the forum they can perform different functions and those answers.

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VFKV (VFKV); Rights = Lock (unlock) participant change its blocking, restore the deleted page, roll back edits. Can give: Only bureaucrat

Need to block the vandal edits and cancel it.