Sorry, how is an Irish ale yeast not indicated for an Irish ale?
See this is an interesting question. And enough time has passed and the website has changed so I can't even prove my point anymore.
I bought it for an Irish Red. But I had a couple of porters to do also from a wort rally at from a local brewery in our club.
It used to be (about a year ago) that Wyeast rated strains for suitability on a 1-5 scale, and if it wasn't suitable it wasn't on the list at all. 1084 was on the list, of course.
For porters 1084 was a 5, sweet stouts, Irish stouts, Scottish styles-- 5. I agree it was good in the porters, but I prefer them a little dryer so it was "good, maybe very good but not on the top of the list" for me personally. For the Irish red it was listed as a 3. I'd agree with that assessment. There are better choices out there. It was probably want the OP wanted though and that is why I honestly (but a little sarcastically) recommended it based on the fact I didn't really like it. To me it tastes like much better flavored ester muted S-04.
When there was the ranking.. and I can be wrong with this by memory, I think the British Ale II 1335 was the "5" for Irish Red Ales according to Wyeast.
So before you think I am completely nuts, you need to know the details
The problem is that even the Google search links to those old charts are gone and they just list it as being "suitable" now. There are a lot of "Irish" beers and styles it is supposed to work in.. even Baltic Porters which is down right odd.
Now the Scottish "Wee heavy" and the like I would guess it would be awesome in. My Christmas Mulled spice beer it would likely be very good in also since it's psuedo-Scottish...