Hello,

You seem desirous to complete as many MapRoulette quests as possible, yet some of your edits have raised some questions.

Just for this changeset, if I inspect the official building outline of those against PICC numerical imagery, which is the official reference for building outlines in this part of Belgium, I see no reason to "fix" them and square them up.
https://www.openstreetmap.org/way/628549393
https://www.openstreetmap.org/way/1221845632

Lots of buildings in Belgium, especially old building inside cities, have shapes that may seem funny to you but are not incorrect.  This new quest about "fixing spikes" seem to produce a lot of false positives.  This message is to insist that you always check building outlines against official numerical imagery—do not rely on aerial imagery for buildings—otherwise you will unfortunately damage correct shapes.

Have a nice day.