Take a look at the rephrasing I did in the wiki (the explanation of "hard" is now in bold), and see if you think it's clear enough now for newbies.

OK. Is better now

The new format for hard expiry works better.

Added Emirates, which has a wierd 3 years plus birth month rule.

Added Singapore Krisflyer and South African Voyager.

Added link to AA T & C.

Added Aeromexico, Air Canada, and Flying Blue (Air France/KLM).

Didn't take long for this to take on a life of its own, which is brilliant. By the time the OP gets to 90days/90 posts, there might not be anything left for him to add.

I enlarged the fonts of the non-expiring and expiry headings to make things a bit clearer.

Yeah, I"m really happy the way this took off! Thanks to everyone for their contributions.

Added Alitalia, Asia Miles (Cathay), and El Al.

I also just checked Marriott's page and it seems to say that points earned via social media, i.e. tweeting and stuff, don't count as "earning" towards keeping your miles from expiring. We might want to put it in the wiki, as that's technically earning activity (you do get more miles/points) but not activity that can prolong the life of your miles. I'm not sure if other hotels also do social media promotions (I've only seen marriott do them) or what their rules would be, but maybe for some hotels/airlines we should put in some details about what exactly counts as "earning"?

I did the Marriott entry, I was careful to only list the ways that Marriott specifically mention, which is STAY, REDEEM, CREDIT CARD.

I made a request that this thread be made a sticky. Given that virtually all the info is in the wiki, and that after an initial surge of posting/updating to populate the wiki with data, this thread would probably not see regular updates, I felt that it would be a shame if this info got lost once it started to drop down the forum. It is info that will be useful to many FTers, that doesn't exist in a collated form elsewhere on FT.

So, great to see the Mod has agreed, and we are now a sticky.

Added Hawaiian, Iberia, and Virgin America.

With that, all of the (USA) Amex Membership Rewards transfer partners are now on the list.

Please note: BA and Iberia both use Avios, but separate Avios systems, and Iberia has a different expiration activity policy than BA, in that BA counts transfers but Iberia explicitly excludes them.

Looking under IHG's Account Status & Activity, I don't seem to find where my expiry date is?

(Club level)

Many programs unfortunately do not show when you expiry date is. That's why this thread exists. The Wiki explains that your expiry is 1 year from your last IHG Club Rewards activity. Unfortunately, the IHG website only shows the last 180 days of activity, not the last year. It does show a calendar year-to-date of points earned, but that's not the "last year" either (except once a year).

So you either have to keep track of it manually, or have activity every 180 days or more often, so that you can see it by pulling up your last 180 days of activity.

(Those in the US have both the Chase IHG Club with its "net negative" annual fee, and IHG Club Dining, to make it easy to avoid inactivity. But based on other posts of yours, it seems you may be based in Canada, and if so those options may not available to you. I suggest you add your location to your FT Profile so that people can take where you're based into account when the answer to a question is different depending on where you're based.)