I uploaded a detailed view of the relevant bets so everbody can see what 1xbit understands by "abnormal bets":

http://i.imgur.com/hsUnMlN.png

9x bets with 58 mBTC.

Wow. Has to be match-fixing/syndicate/abnormal betting. 4th tier vs 8th tier. 8th tier is called Kreisliga in Germany, there are only 2 or 3 leagues below that league. They are purely amateur leisure footballers who play football at the end of the working day, doing training two times a week. Koblenz is a professional team, played 2. Bundesliga earlier days. There is a huge gap between those leagues.

So is it abnormal when I'm expecting a blowout in that match and place some bets with only double digit stake on high odds?

I tell you: This is the most normal thing I can imagine. Your bookie just made a huge mistake when he made odds around 2.00 (=50% win probability). In fact they had a 98-99% winning chance.

Who else thinks this kind of betting is "abnormal"? It's just value betting. Is value betting abnormal?

Does value betting authorise the bookies to close player's account and confiscate all his funds deposits included?

When your answer is 'yes' then sports betting does not make any sense at all. Except for the bookies.