Ads over T Tiles

[thedonk.livejournal.com]

Is anyone else annoyed by the billboard-type ads stuck over the tiles in Davis Square Station? I realize the ads are stickers that will eventually be removed, but 1) I worry about damage to the tiles if this is done often, and 2) it just seems disrespectful to paste something over them, especially as they're so representative of the neighborhood's history.

EDITED: to clarify thoughts.