Can't find that thread, but I hate when they add these new commons that knock good bingo dragons out of the running. Fruitful was always a fairly reliable, not-too-high-hours Bingo choice for 300 points. They did the same adding Firegrass, which knocked out Life dragons. I'm sure there are others, but I've noted increased difficulties breeding several staples. Add in the random plagues of Rare and Super Rares, and you never know where you stand anymore, oddswise.
I was going for a Fruitful, using Forest and Air and got 6 hours. I'm not going to clog up my Breeding Den for 4 or 5 days. I wonder if it's worth keeping this thing on a Nest, or if it will even count when the time comes if I do.