Which forum (if any) would one post in to ask for suggestions about relationship issues?
Probably IMHO. Some would say MPSIMS.
IMHO is explicitly for asking others’ opinions; it’s in the name.
Both are appropriate I’d say, although which I’d pick tends to be about my intent.
If I wanted to talk about a relationship, more about how it applied to me, and maybe solicit sympathy and advice, I’d do MPSIMS.
If I was thinking about entering into (or possibly ending) a relationship, and just wanted opinions on how to do so, I’d probably put it in IMHO.
So, depends on the reasons you want opinions, but I would still say neither forum is wrong.
If you have a long story for the OP and plan to share a lot, MPSIMS, otherwise IMHO.
Actually the answer above is better than mine. Sometimes I’m too brief.
Ok, thanks.
IMNSHO, IMHO is for general opinions, like a less-restricted GD.
Whereas MPSIMS is the place for the personal (it even says so on the tin). So what the OP is asking about, should go there.