As a recent Fast Company article points out, many Japanese still view online dating as a scam.
That perception dates back to the '90s, when pseudo dating sites required men to pay per message and had their employees pose as female subscribers. This past June, The Daily Mail reported that eight executives were arrested in Japan after allegedly fake dating sites they created in 2004 were exposed.
He also cites a problem with profile photos: "In Japan, posting any pictures of yourself, especially selfie-style photos, comes off as really douchey." 29-year-old Japanese woman named Kana told the comedian-turned-author.
So instead, they use photos with two or more people, or no people at all.
This isn’t to say that you as a foreigner can’t find love in Japan, because some people do indeed have success, but it does mean that you need to ‘clear your mind’ and realize that there is much that is different and much to learn on the subject of love in Japan.