My first blog post using EasyBlog Composer had content Revision and wiped out by Guest?

This may be a problem that was caused by somebody from StackIdeas trying to help me on a previous ticket but I somehow do not think so. The blog is titled: Eat Fruits and Vegetables to Cut Colorectal Cancer Risk

I just noticed that the blog I published earlier today (my first using the EasyBlog Composer) somehow had all of the blogging formatting removed. Basically it was a blank slate. It still had the title and it was still published but there was no content.

I logged in and opened the file from the backend and checked the history and discovered that the file had somehow been modified by "Guest":
Revision #18
Guest · 05 May 2017, 02:53pm

I recovered the file back to Revision #17 and so all appears well again.

But, I am very worried about how a Guest user somehow modified my file. Also, the timing seems very suspicious because there is a bunch of Revisions all marked at exactly the same time. That can't be right.

Thanks for any ideas you might have about this.