To answer the question about what would keep me playing longer:
(1) Things that would allow me to explore more of arctic on my own.
Legend ranks, world merchant, reduced penalty on death are great examples of things that have already been changed in that regard. I don't have any bright ideas for other changes, but one of the biggest things that keeps me playing is the sense of exploration, although I hate kewords with a passion.
(2) Things that help deter blatant griefing. Changes to the who list based upon aggressor flag is one example I've seen recently, but I think more could be done.
I would suggest learning from EVE online's pvp system where there are areas where pvp is not permitted unless there is a formal war declaration through the game mechanics, or if players are in the more dangerous/lucrative areas.
(3) Forming connections with other players in or out of my own clan and zoning with them etc. I like to solo, but I also like to play the game with other human beings.
Perhaps adding some sort of clan alliance functionalities above and beyond the existing clan functions might help.
(4) Having the means to escape and/or get out of the inn when being hunted by a much larger group. This could be solved by the previously mentioned pvp system, or possibly through buffs/debuffs placed on players engaged in pvp conflict that would make it easier for those outnumbered to escape.
This would have to be done in a way that did not negate the advantage of those with better numbers/gear if the hunted chose to stay and fight, but rather would give the smaller force a greater ability to get out alive. I.E. if a person in the smaller group uses an offensive spell/skill the buffs etc would be gone, but if they want to recall/flee from the get go, they would be harder to find/trap/kill.
(5) Getting rid of the of KW's that are nonsensical, or have absolutely NO clue to them in the room or even the entire zone whatsoever. Apart from the actual fighting difficulty in a zone, I can't think of anything else that gets in the way of exploration more than this.
People should not have to look at logs to learn zones. Yes there should be thought involved and it doesn't have to be easy. That having been said, the difficulty involved should not be about guessing words or looking at a thesaurus, it should be about paying attention to the details of the zone itself, I.E. interactions with npc's, room descriptions, item descriptions and scan info.
(6) If anyone noticed, not one of these things that has kept/will keep me playing longer has to do with the number of bots roaming around, rather it has to do with my ability to interact with the game's content and with other players on MY terms, with or without bots being involved.