$0.02 on formal reviews, from someone who has been on the list for a little while, but has not contributed anything to the evolution of the library. The biggest obstacle for me in participating in the formal review process is time. I think the review timeframe is too small. I would much rather have two or three reviews overlap by a week or so, with each review having an extended time period. I doubt many of us have the time or expertise to participate in all reviews. However, there are occasions where we may have significant input. I believe I could have contributed in a non trivial manner to several reviews. However, by the time I see the announcement, download the materials, go through them, and try to keep up with the current comments, the review is over. I am so busy with work, family, coaching (American) football, and other activities, that the review periods usually seem too short (for me, at least). As a result, by the time I am ready to give input, the review is over. I do not care about the recognition aspect, as that would have no bearing on my contributions. For me, time is the critical component, and I just do not think the current timeframes are sufficient.