Being randomly redirected does not sound like something most people would like.

I do agree with more-people voting on this site, but I've already read most of the other ideas at least once.

i mean it can be a choice in your profile - select either
go back to same page
go to new random idea
go to next idea in group

or even better-
go to new idea you have not seen yet

How about you get an idea that matches how other people voted, just like what Amazon does? Ie, "other people who liked this idea also liked..."