I know giffgaff once (maybe twice?!) sent out t-shirts to people who had hit 1000 posts.
I think giffgaff should bring this back as it sounds like a really nice thing to do.. and I would love to wear a giffgaff t-shirt
As shortylumber said.. It may not be classed as a big milestone as there are so many people now but I don't think there are lots and lots of active people who have posted more than 1000. (I'm not saying there isn't a decent amount!)
You could only do active members or have somewhere to apply so you can see rough numbers and don't do the people that are no longer active. (Do it in waves.. say everytime there is payback or something)
It is a great motivator thinking that giffgaff could send you something for reaching a milestone like that..(It took a while!)
Edit: Also.. What happened to 10,000 post fleeces? (Thanks Matthew )
(It also shouldn't cost gg that much..)
And I am not just doing this because I hit 1000 posts! (Well.. sort of.. I have been thinking about whether it still happens for a while)
It could also lead to new recruits! (Thanks simonefaye78 !)
Edit: You could give it to members who have been on the forums for x amount of time who have hit 1k posts to stop spam posts (Maybe a year?) Thanks joolzian !
Extra: Thanks to everyone who kudos'd! We just need more now
Thanks to everyone that reccomended extra milestone ideas.
"I think the extra milestone is a good idea as it will reduce spamming.
And thanks to pr08rad for this idea:
Perhaps once a set limit is agreed, the postee should Apply for the shirt of mug, or fleece etc. that way you at least know they want it, as some might not be bothered. But you would need a real tight control over spam posting
Something like 1000 posts (Maybe 1500?) and 100/150/200 kudos and maybe no warnings to your account?"
Another possible idea, thanks to liamkhan is give it to people who reach a certain rank - This would work well as you move up ranks with posts+kudos+accepted solutions!
If you want to help this get more kudos then put this in your signature, credit to stephenmiller
<a href="http://community.giffgaff.com/t5/Submit-Great-giffgaff-Ideas/Bring-Back-1000-Post-T-Shirts/idi-p/8197140" target="_blank">
<img src="http://i.imgur.com/UMnfEpf.png" width="546" height="80" alt="teeshirt" />