I use e926 (The safe mode for e621) to look at art safely when in public, and for the most part it works. It shows me all safe images, keeps me entertained, and prevents awkward moments.
That is until I noticed on the side it shows Trending Tags, just like on normal mode. Upon further investigation, explicit tags like penis, vagina, cum, scat, ect... are on that sidebar. Even though only safe images are showing, those words are still visible.
I would suggest that the Trending tags sidebar either:
A)Be able to be turned off in settings.
B)Be minimizable.
C)Filter explicit tags.

C may be difficult, since every tag would need to be specified as explicit, questionable, or safe. This would take a lot of work. A and B may be simpler.

Yeah.. That would be swell

What I usually do is install Adblock Ultimate in the browser I'm using and use it to block out the element IDs of stuff I don't want to see. I had to do that on the Wal-mart careers page because one of their ads covered up my previous employment field that I need to see.

While it may work for me, your mileage may vary.