Already explained it in Okoratu's post, tl;dr the sound of this drum is very distinctive from guitar sounds before, so intentionally not mapping that to create the forced emtpiness.
The guitar riff sound here is very distinctive, so either a spinner or slider would do, but compared to the previous section consisting of forceful tapping strain, here the start is rather blurry and has no strong beat to tap. Wanted to emphasize not clicking here to make it that clearly different from sounds before.
Addendum: sorry for the mess up, after the dq happened we discussed the topic a bit more, instead of an outright denial I'll send the background to content review, you can however the change the background if you do not want to wait. I'll get back to you once the voting concludes with results. Again, sorry for the misinformation on my part.
Yeah, okay, as per Kudou's clarification (which could be a bit more direct) the current iteration of the image has visible nipples on both girls' swimsuits, while the version that was submitted in September lacks that "feature" and the nipples were edited promptly.
If I understand correctly, the aforementioned rule is a *rule*, not a guideline. I can see how you are not very elated to see "Grystnyy dance", but it's neither disgusting, nor wrong, you're probably just too used to the "dens" transliteration. Japanese speakers have to endure it all the time and they seem to be perfectly fine. See: buriki no dance and harukaze dance as a few examples. Furthermore, as a N a T i V e speaker, I have no troubles perceiving both choices.
I find it suggestive because the girl in the background is evidently wearing only her underwear. It's not appropriate for a game that is open for all ages.