It dawns on me I should explain what 'Reddit' and 'AMA' are.
Reddit is a site that has a lot of different 'sub-reddits'. Think of them as forums of a sort.
The AMA (Ask me Anything) is one of their more popular forums. People of note will go on there and 'Redditors' (people who look at reddit) will ask them questions.
So if you visit the link, you will see a list of questions. If you see a response tagged in blue, that would be from the 'OP' or original poster. In this case, the posts with the user name 'matthiaswandel' highlighted in blue are his responses.
Matthias is the clever guy behind woodgears.ca who has created all kinds of interesting tools and projects, such as a bandsaw, pantorouter, gear controlled boxjoint jig and such out of wood.
Just thought some folks might find it interesting.