When Mishna Berura (siman 8) says that those who tuck their tzitzis in their pants are being “mevazeh” the miztva, what does he mean? Please explain Mishna Berura’s intention. That seems like a very strong wording…
Don’t really understand your question, because the Mishna Berura (8- 26) explains himself very clearly right afterwards. He says (with a little additions of my own) that when we wear tzitzis it is a special present that has the name of H-shem on it (which is not our topic now), and it represents the mitzvos, and is a reminder of the Kisei Hakavod, and instead of being proud of the special emblem and badge of the king, we are hiding it because we are embarrassed of the king emblem. This is embarrassing the mitzvah, and the special gift that the king of kings gave us!