Negative offsets

I was playing around with negative offsets:

select * from table1 order by col1 offset -5 limit 25;
select * from table1 order by col1 offset -25 limit
25;
select * from table1 order by col1 offset -250 limit
25;

They all return the same resultset (offset 0). Is
there even any point in allowing negative offsets -
such as maybe someday they'll offset backwards?

thanks
csn

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