Disagree.
First, they get the grades and the comments in the grade book. Then, midweek, they get the summary showing that they are below passing and they are told what they need to complete. At this point, all but those who are sick, or having some large personal problem happening in their lives, respond.
Second, once they respond, usually email, but sometimes texting, I answer their question of what they need to do; they usually need to just complete the work assigned which they have not completed. I tell them, clearly, that here are the assignments and the points involved, and the possible change in grade upward possible if they complete the assignments. Most then turn them in. I clearly point out to them that 45% of the grade is posting and replying to the Discussion Board, which are the easiest points of all, compared to quizzes and assignments. I point out that the assignments and quiz questions are all clearly covered in the live chats with similar questions and problems so it is to their advantage to watch the archived chats or come to the live chats.
Third, if they say they need help and don't understand anything, I suggest tutoring and ask them directly if they have tried to do the work. When they say "yes", I ask them which problem did they get stuck on, tell me the steps they took and which step caused the problem? If they stop responding, I repeat the question and copy their advisor, saying that perhaps the advisor can point them to how to use the tutor and work on the material.
Fourth, if they respond in detail, I carry on a dialog, via email, with them about getting past the troublesome step in the solution. At this point, these students usually get moving and either get tutoring and/or help from various sources. I also tell all about some websites that might help, tell them to Google key words of the problem to find how others on the web solved similar problems, etc.
There are two classes of students; those that need motivation and a push and some help, and those that for whatever reason, don't respond. The approach I take to get at and help the first class is;
1. Explain the points/grades and their paying for tuition or costs. This motivates all but a few.
2. Move students towards tutoring or outside help if they don't have specific questions.
3. Help those left who are responding and can be helped in this synchronous individual exchange of emails.
4. Unfortunately, there are always some who don't respond at all, and they either flunk, drop out or eventually request an Incomplete. All of these students have been reported several times to their advisor, and that person also tries to help with problems by giving support, motivation or advice.