They might, but I think their absence also says a lot. You should at least get to hear from forum regulars that were really upset, though.
Many of the ones that complained the loudest weren't on the forum before the problems... and probably won't be again unless there is another one. Venting is one thing, but trashing a forum where you've never made a single helpful post is just wrong. Then, also keep in mind that some of the ones spamming other hosts/referral links might not even really host here in the first place.
Since you still seem really interested, I'd probably do this: Keep monitoring the forum and Dreamhoststatus.com for a few days, maybe even a week, until they basically say that everything is fixed... and there aren't 100 posts saying otherwise.
Then, just sign up. You have 97 days to figure out if you like it or not, based on your own experience and expectations. You'll see and feel exactly how it stacks up compared to 1&1, or any other hosts you've tried. You could even do it now and monitor the change yourself, if any on your particular server--but I'd probably wait so the 97 days are as useful as possible.
Another thing to keep in mind is the percentage of customers that are or aren't happy. I think some people forget that Dreamhost is HUGE, maybe because of the laid back tone and how open & accessible the honchos are.
In reality though, a smaller host with 5 unhappy customers might have a much worse overall percentage than DH if they had 100. I'd probably also avoid a host that only has one unhappy customer... if they only have two customers total.
Same deal with a huge company like 1&1. On their best day, you could probably still find 100 people that hate them.
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