F66r question

[Searcher]

Whatever the symbol written over the m is (to me it looks like an at - abbr.), it is the same symbol as that before the en
and does not look like a correction...

The upper stroke differs. Ok. We can assume that the reason is the edging. But we can't be sure whether it is correction or not because of the blot exactly in this symbol. 

Koen G. wrote:

Why would they obfuscate marginalia?

There could be many explanations, for example, I can imagine that the marginalia play role of hints or red herrings, or either.
I mean that the author or a group of authors made the marginalia to look like Latin, German, French, Italian, even English to hide the language of the text. Some words remind Greek. Possibly, the text is in quite another language, or maybe, one of the languages is the language of the main content, and, not excluded that it is multilingual. 
As I wrote, I think the original text of the You are not allowed to view links. Register or Login to view. marginalia is under the overlayed letters. Perhaps, the overlayed symbols also play some role. I think the top "p"-like letter is related not to the original text, but to the overlayed. We discussed somehow that it also looks like Greek "You are not allowed to view links. Register or Login to view.". Let's assume this γ imply Latin g, the right letter is o, the left and the bottom ones are d, reading clockwise we will get the word "godd" (god -Middle English).
So, it can be a rebus or just a deception.