No text, but a visual code

[ReneZ]

The unusual signs in You are not allowed to view links. Register or Login to view. could conceivably be symbols for the planets.
Such symbols should appear with very low frequency, and this is what we see.

So:
- the group of (20-30) frequent symbols represent (or are made to look like) characters in the alphabet
- the very limited (<10) group of rare symbols on You are not allowed to view links. Register or Login to view. represent the (medieval) planets or the zodiac signs

I am not aware of any medieval work where celestial symbols represent the majority of the text.