Well David,, I never understood that rule,,mostly those are ships which are often only once on this site or very rare ships like converted shrimper to general cargo ships often done in south america and also africa/asia. But because the names are sometimes not there they get rigorous deleted after one year. I had at least 50-60 such vessels over time deleted because of that rule.
Absolutely not understandable. Much more important is it to have the 200th picture of the Britannia or the 600 of a E-class vessel !!!!!