Hosanna and a few others are considering it. Whether they actually will or not is another thing.
Besides, it really isn't as daunting when you realize it's only about 120 hours if you skip the filler, the OPs after seeing them once, and the 5 minute recaps at the beginning of each episode later in the show. Still really long, but not so intimidating when you realize it's shorter than a full playthrough of Dragon Quest 7.
If it's entertaining, why should it matter how long it is? Someone in the OP thread started it recently and is bulldozing through it. I probably wouldn't recommend that since it's very easy to get burned out, but hey as long as he's enjoying it.