スカイマークは、なんで撤退を繰り返すの？

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http://gimpo.2ch.net/test/read.cgi/airline/1201559660/l50
http://gimpo.2ch.net/test/read.cgi/airline/1195404063/l50
http://gimpo.2ch.net/test/read.cgi/airline/1198158742/l50
http://gimpo.2ch.net/test/read.cgi/airline/1136524640/l50
http://gimpo.2ch.net/test/read.cgi/airline/1213405739/l50
http://gimpo.2ch.net/test/read.cgi/airline/1175229207/l50
http://gimpo.2ch.net/test/read.cgi/airline/1240239156/l50