I voted no too, as I've been monitoring my usage the last 20 days with TrafficStatistic, and I've only used 1.3gb (and that was including doing a massive Windows update on my daughter in laws laptop last night).
So I'll be well within the 30gb limit (which is the same as it is now 1gb per day). If I was going to be capped at 5gb then it might be a different story, as some months I may get near it.
If it's only going to affect the big downloaders (more often than not illegal stuff), then fair enough, it will free up the network for 'normal' users so should be a good thing. I'd hate to live in the same street as a few big downloaders, it's bound to effect your connection.
I more had an issue with the £25 upgrade fee, but that seems like it'll be waived now (going by the other thread). The upload speed could also do with being a bit faster too, especially with them pushing online gaming nowadays.
You'd have to go some to use 30gb a month as a normal user, it's more the speed which things happen that's useful (not having to wait for pages to load, updates to download etc).