I bought Risto Isomäki’s Ceti Revisited in Finncon last year, and was quite a bit mystified by the blurb: had the alarmist environmentalist truly been able to write a book about the dangers of communicating with extraterrestrial intelligences.
The initial steps were good indeed. Theory and history of the topic were more or less adequate, but before long the author jumped back onto his favorite hobby horses. He has used both methane clatrates and coastal nuclear power stations a lot in the past, and it turns out that this book is no exception. A sizable chunk of a book on communicating with distant stellar neighbours devolves into the well-trodden paths. Paths that have no new content since he last wallowed in them or any meaningful connection to the book itself.
Great premise utterly spoiled by the authors perennial mannerisms.