I think those things work on the philosophy of "every letter has a meaning, so your name's meaning is made up of those meanings". I was doing a search engine thing to see if my site would come up anywhere, as an aside (it didn't, but then I didn't think it would) and staggered across the meaning of "slig" if you gave a kid that for a name (poor kid) and it was actually rather amusing...
(The fact it's a girl's name equally so...)
"Your name of Slig creates a passive, friendly, easy-going nature, but your desire for sociability and the pleasant things in life makes you too easily influenced through your associations. You are too generous and if appealed to will give all you have because you find it difficult to say "no" and mean it. You do not like to create tension or friction and will try various means to avoid such situations. You are very idealistic. You have imagination and many ideas but lack the ambition and drive necessary to accomplish your undertakings. Many times you dream about the things you desire in life, but when it comes down to putting forth the necessary effort and accomplishing your goals, you do not have the strength and initiative. This name does not allow you the system and order your life requires to run in a smooth, efficient way, and if possible you will avoid having to make decisions because you feel much more secure when you can lean on others. Many times you make promises you do not keep, although your intentions are always good. Any weakness in your health would cause you to suffer through either kidney trouble, female problems, or varicose veins. Due to a sensitivity in your nervous system, you could experience nervous disorders. "
*giggles*