I'll go down each subforum for this.
viewforum.php?f=39Game Development - Most Recent Patch: Should always be stickied, I like this.
Plea for Moderation - I don't mind this being stickied, but I also feel like it's active enough that it doesn't need to be stickied, either.
Legacy Haven - Should unsticky.
Game Development World(Now): Doesn't really need to stay stickied? Not much good conversation to be had other than about the current patch, and most other criticism should go to C/I
Boats of Skye:
Unsticky create and entire new forum for it
viewforum.php?f=40Thingwalls Explained - Good to sticky... for now. I definitely think it can be unstickied after some time, and further conversation to be in C/I
Screenshots: Yeah sure.
Sticky Post clean Up: as soon as you finish, unsticky.
Status Thread: Yeah, sure.
Happy Birthday: I might be a grouch but I don't really think this needs a sticky.
Wipe Discussion: Also doesn't need a sticky.
PaidToSupport: As above. These 'megathreads' don't need to be stickied.
Aesthetics/Serene Thread: Likewise, don't really need to be stickied.
For the above 4 threads, you can just have a single "Megathread links" thread stickied, for topics we don't want new threads about.
Developer thoughts on PVP: Also unsticky; I think jorbtar's stance on pvp is clear and it doesn't need to stay at the top all the time, especially since it hasn't had meaningful discussion for years. We could also just add "Developer Stances" to the megathread link to link to big posts like this, too.
viewforum.php?f=42Grand List of Simple Questions: I think this should stay as a sticky, even though it's less of a list and more of a "ask small questions here" thread. Useful, cleans up the forum.
Wiki: Yeah, keep it.
Tips threads: So much of this is outdated and not useful anymore it doesn''t deserve to stay; dare i say, it didn't need to be a sticky to begin with. The "guides" announcement post is much better.
NEw controls: Doesn't need to stay; questions like this can go into the grand list thread.
Java 8 download: yeah... unsticky this.
viewforum.php?f=47Offseason credos: This is still an issue and i can see it fine as being a sticky if loftar actively checks it; otherwise, not much of a point.
Literally every other sticky: Compile all of these threads into a "common bugs and issues thread (read me or die)" megathread. People don't read the stickies as-is as can plainly be seen, so just compile em all.
viewforum.php?f=48Things not implemented: Not needed anymore since 90% of things have been implemented, and this was mostly a concern early on in development; most of what we see now is brand new original content. Didn't really need to be a sticky anyways.
Top 10 ideas: This should stay, but move away from the "top 10" and just list more things. You know what i'm talking about, magicboy.
P2P plan: Pretty sure the current monetization schematic has worked well for J&L and it's here to stay, so this sticky seems moot. This was a big thing back when we had the silly system of limited playtime.
viewforum.php?f=49World map 1&2, population tracker: Merge into a "Actively developed projects" link, including active clients, world maps, and so forth.
Client source code: Can probably also go into the above thread, but isn't that bad as a sticky.
Regarding custom clients: I feel like this sticky should have more attention, renamed to "A warning about custom clients". Either ways, keep as a sticky.
Queen of a cold, dead land. Caretaker of the sprucecaps.