I recently got warnings just after having upvoted an answer. It said something about the fact that I haven't voted for a question for a long time and that questions need votes too.
The problem is that it disappeared so fast that the first time I could not read it at all. Well, ok, to be honnest I could probably read the 2-3 first words :-) but not more.
Could not this message stay a little longer on the page ?