Isrl

What is the rationale behind treating "Israel" as if it were spelled "Isræl", so that all the DNAH-era entries have URLs containing the string "Isrl"? (I realize the answer may be hidden in the mists of antiquity and/or obscurity, and it's a moot question anyhow; but:) Will I be helpful or hurtful if I move such items as I run across them to new addresses that spell out "Israel"?