I accept guest difficulty requests if there is some assurance that the map will be ranked. Generally this means having a good track record, but if you don't have any maps ranked yet (or very few):
Get another map ranked first. Show me you have the dedication to see a map from the beginning through to the end.
Finish mapping all your diffs for the map you want the guest diff for. Same reason as above.
If I've made you a guest diff and that mapset isn't ranked yet, consider yourself banned from further requests until that mapset is ranked :>
Format: 2v2, Team Size 4 Team Name: Down Under Members: Trashed_G (#139,464), Sukyandaru (#113,423), _ascension (#120,198), fyii (#180,902) Seed: 36/128 (133) Placement: 17-24th (QF-L1) Forum Post | Main Sheet
Format: 2v2, Team Size 4 Team Name: YGO kids Members: Supernye (#10,855), Woop (#10,656), AllBlue (#10,163), Musa (#10,077) Seed: 4/64 (105) Placement: 5-6th (F-L1) Forum Post | Main Sheet
Format: 3v3, Team Size 5 Team Name: YGO kids Members: Supernye (#10,422), Radial (#6,380), oslash (#5,076), Musa (#10,042), oi9k (#6,246) Seed: 2/16 (24) Placement: 1st Forum Post | Main Sheet