I must say I was really surprised when I noticed that in the most recent version TotA 1.91 I was able to demolish the biosphere modulator on my planets. Needless to say, since I am a curious person, I tried what happened when I did that, expecting the planet to lose 3 random tiles and 3 PQ. However, no such thing happened. PQ and tiles remained constant, and the modulator became constructable again! So, by alternately trashing and rebuilding my modulator, I could raise planet quality through the roof, including available tiles.

Not to say this is not funny for one game, but such a bug should be fixed ASAP in my opinion.