Another factor to weigh-in is the reputation of both the Campaign Manager and the Campaign itself. A Campaign Manager with a track of well managed campaigns could be an important plus to consider, and checking this out may lead to better chances that the campaign does not eventually turn out to be a fiasco in terms of compromised crypto revenue.
Most campaigns (not all) also require that you wear their avatar (once you are a Full Member or above). I find that an avatar influences quite a bit on the image that we have of one than the signature he wears, since its part of the profile information on the left of the posts that we normally visualize. Having a crappy ICO avatar can easily be associated to your person, and thus contaminate your profile (says I, who does not bear an avatar by choice
).