Everyone started using them for endless and cheap pvp/siege waves. Also spenders were able to unlock those areas way too fast and get lvl 7 troops while rest have lvl 3-4.
Its a good change except but also made them worthless.
Main reason for nerf is that they were providing tons of fake power. This cant go well with new attack power requirements as it will allow weaker player to engage and lose.
" NERF " ELITE MERC. CAMP ?
Map areas with Recruit Camps. ? U mean in Skarn or in Neferak.
Usually weak Recruit/Mercenaries are available each REFRESH TIME
Some Berserkers/Hussars/Goblins few are usefull in PVE/PVP.