I think if I were going to request something about how Readme's should be done, it would be this:
- Remember that your readme will probably open in Notepad. Notepad, by default, does not have word wrapping. Thus, limit your line lengths to 75 or 80 characters in width.
- Stop using special characters. It looks great in PDF documents; all other forms require the PC to have those special fonts and symbols installed.
- Use Notepad documents for "Quick Setup" instructions only, because otherwise it becomes difficult to read; documents that are difficult to read means that people won't read them, so it won't matter if you provide a simple fix for "But my wufflebunnies have no textures!" complaints, people are going to sooner send a thousand messages asking the same thing.
But as Echonite pointed out, this is kinda moot.
That siad...I do have a more pressing request from the modders in the community, because this became a big issue with some of the more attractive mods in the Oblivion community:
For the love of Talos, do not bundle extra races and non-canon crap into your mods that you know are largely downloaded for other reasons.
( I'm looking at YOU, beauty pack mods. ) There's nothing wrong with providing cross-mod support, but please keep the extra support in patch form. There is nothing more obnoxious than cycling through 15 races that have never appeared in a TES game just so my character can have slightly bluer eyes, or because I feel that your birthsign system worked great.

This is probably the #1 thing that killed ALL INTEREST in some of the major overhaul-ish mods out there that otherwise would have garnered my worship and support, like MMM and others -- it started out wonderful, but then I start seeing D&D stuff or creatures or features that Do Not Belong and I feel... meh. :/ This is not to call those mods bad, just that I feel that they took away from my own personal experience and others may feel the same.