The Levels tab on the 'Classic WoW Planing' spreadsheet shows which content allows more than 5 characters (the ones highlighted in yellow are limited to 5).
10boxing makes sense if you are farming BiS items (or particular items) from LBRS & UBRS and if trying to get drops off trash in raids (&/or joining other people in raids).
You can take 10 into lower level dungeons but you get reduced XP so most times it isn't worth it if you are trying to level.
Connect With Us