[Q]

I like the no atmoshere for mechanoid races and the Borg e.g. have this.
If you play with Mod Pack 1.01 the AI will build atmosphere converters, but it cannot differentiate between planets that have already a breathable atmosphere and the planets that actually need this facility. According to Mephisto this cannot be improved at the moment by us. Only MM could do this (see topic about Mod Pack on this forum way below).