I had always thought that the only links that were frowned on there, as here, were ones that basically solicited "come on over to the other place"

Informational and helpful links to other forums, should never be blocked by one forum to another IMHO, and if the link is felt out of place, mods can always nicely ask that the links be exchanged via PM rather than on the forum

But filtering out the links??? I am puzzled by that!

There is more than enough room on the Internet for many support and exchange of information/experience forums like these, especially as many members use a network of forums to meet their needs.

Our welcome mat is always out and our door open...