I've been off it for 2 months now but will probably go back to it next year or something, I've wasted too much time of my life to just quit completely lol.
I think the key is to not overdo it, and take frequent extended breaks. Also always have goals. If you frequently find yourself sitting at the GE wondering what to do for an hour then you are doing it wrong.
Most people dislike RS3, but I enjoy both 07 and RS3 the same. Honestly I actually like the fact of having two of the same games, but played in two different ways. I enjoy both the same, and like growing on 07 whilst still achieving high enough stats on RS3.
As said above though, I've also played since 2003 and RuneScape is literally a massive hobbie for me still to this day.
Everybody has their love hate opinions on RS3, but it's evolved and turned into something which is pretty cool despite the small problems like easy AFK, and Treasure Hunter, apart from that I like it all. Same as 07 for the nostalgic of it, so at least we can all be glad we have two games to play, and not just one everybody hates.
This is for market threads, if you have a discussion post it somewhere else or ask me/any mod to move this thread. I don't see a point to this post though, so I'm going to close for now.