So I think something that would be good to implement would be some kind of competitions between the packs, since currently the only difference in packs is what free cosmetic you get and which forum you have access to. Although I really wouldn't want it to end up as just “Everyone goes to x pack because that one always wins” and I also do think we should have more incentives to do professions (although the food nerf has encouraged food professions such as fishing, cooking, and farming)
My suggestion is having competitions linked to the week-long profession events. Taking this week's event as an example
Game keeps track of all the ore mined throughout the pack (even after the 400 mark)
Average between all active members of the pack
Pack with the highest average is the winner
Award the winning pack a small reward relating to the event, such as if the winner was for this week, maybe like a 5% xp increase in mining for the next week. Gives no advantage over the other packs for the next week because it's for a different profession
Having it cycle around for all the profession events would also give opportunity for packs to win without it constantly being the same method of winning. Would allow organization in the packs about which event they should aim to win, and makes the pack you choose have some kind of impact on your gameplay.