Cant respond to a question I have participated in?

Anyone else having a problem posting a response to any questions? I have been assisting a user with a question here on the forum and have tried 4 times thus far to post a followup to his last post, all with no success. I even tried editing my original answer in order to get it to him. Now upon my return to the question, even my original post is missing and still I can not respond to that particular post. I have participated on other Q&As just fine so I know it isn’t site-wide issue.
URL of post in question is https://www.techrepublic.com/forum/questions/101-380257/how-to-block-gmail-in-an-organisation?tag=content;siu-container