To be honest, my thoughts on the suspects are... Well, Moltres is really hard to take on effectively, with there being not that many Pokemon that can effectively switch into the Life Orb set; like Somalia said up there though, everyone's using Scarf (which apparently tears apart offense, but isn't threatening to anything semi-defensive really). And yeah. Pangoro can cause a lot of damage, though it's only Lum SD that really scares me (tears my current build apart to hell and back, which i need to fix) and yet I haven't seen that many of those.
If anything, I've taken heart from Nails' post two pages back, because Exploud seriously limits teambuilding, to an almost ridiculous degree. What can actually switch into it that also fits on stall?
SpD Cresselia (Which isn't the onsite spread; onsite spread always 2shotted after rocks and sometimes before then. And can't do much back except get stalled out of Moonlights. I actually plan to use this at some point, but still.)
Rhyperior (Often 3-shotted by boomburst)
Restalk Escavalier (does anyone use this? Seen it getting an analysis and it looks bangin', but also never seen it on ladder so idk. Also might die to 3 boombursts if rocks are up, i.e. Boomburst, switch out, switch in and Boomburst + Boomburst).
Mega Steelix (same as Escav.)
Ferroseed (can't take 3, can't really answer back, can't regenerate on a grass-type switch-in. Keeping in mind it's max Def, if someone has a pet spread they use feel free to post it).
And the holy trinity, I guess?
Bronzong
Registeel
Regirock
Outside of that, I guess you have really obscure or bad stuff (SpD Doublade! SpD Assault Vest Slowking! Something I haven't heard of since it's obscure! Probopass! Carbink, which I plan to test at some point but kinda looks like shit!!!!!).
To be honest, when I'm running stall, I really feel like I have to run one of the above three. I'm currently just flying by the seat of my pants with M-lix, and it works OK on occasion, but I mostly relies on clutch wishpasses in order to survive.
Keep in mind that many of these things are basically GG'd by the right move on the switch-in; the holy trinity can tank even a super effective move and keep on kicking, but often have trouble really dealing damage back and have no reliable recovery to speak of; this holds true for a lot of Exploud's stops. Curse Registeel is really about all you can viably run and not give a fuck about exploud.
Keep in mind that a lot of these mons are toasted, surfed N turfed, or...focus blast verbed, into oblivion; again, only Registeel out of all of these can really take 1 SE coverage (or SpD Cressy?), then come back in and tank 2 boombursts, but again, what can he do back?
Never been great at telling if something is broken because I just adapt to it and keep my head down, but I will say this; Exploud really does restrict stall teambuilding to a large degree, and often wins in spite of this. Although it is worth noting that you have to run many of these mons for Mega Abomasnow (you can at least run Doublade for that though, and its SR weakness helps a lot, as does it not being as much of a giant nuke and having so many exploitable weaknesses). At the least, Exploud merits some discussion. I think i'll be voting neutral on both suspects, but i'm going to go ladder for a while and see how I feel about each suspect.