alt Hacker NewsI can comprehend most of the text back to 1300, if slower than Modern/Present Day English. It helps to know the old letter forms, and some of how Shakespearean (Early Modern), Middle, and Old English work. It also helps sounding it out.
Past that, I'm not familiar with Old English enough to understand and follow the text.
Knowing a bit of German or Dutch helps as well.
I posted my amateur translation of 1200 here: https://news.ycombinator.com/item?id=47102874
At first it stumped me, but I spent some time on it and it started to become intelligible. I didn't look up any words until after I was done, at which point I looked up "uuif" (woman/wife) since I wanted to know what manner of amazing creature had saved the protagonist :D