There are only about 4 names that have a rating of 50% or under. Some of these are rated higher.
Ōkuninushi - 33%. I don't think this is used for real people though.
Saburou - 46%. Trendy looking.
Takeo - 50%. I'm not familiar with this name, there might be some sort of negative association or something. Sounds cool though.
Juurou - 50%. Similar to
Saburou this looks kinda trendy, but I don't think it's bad, but to me it looks as trendy as
Jaxxon.
Moe - 51%. Probably there's a slang association. Same with
Yuri but it's rated higher.
Taichi - 55%. Probably because of the meaning "thick one" or the association with
Taichi from Digimon, which I don't think is a bad association.
I hope that you aren't offended.