My personal opinion – being a moderator doesn't come with any understanding of the forum's inner workings or what MyTimeMedia are planning to do with it. I think the mixed results are because some of the early magazines have been converted to not require Flash, and therefore should read on any modern Browser, but the majority are still in Flash form.
There are 5 or 6 free Flash alternatives available but I've not got any of them to work on magazines. Seems they all decode Flash Videos and Games but not the Flash format used to store magazine pages.
As an ex-IT person, I can confirm you really don't want Flash on your computer. Although it functions extremely well there are several objections to it (see the Wilkipedia article if interested). Most worrying to the ordinary user is the underlying code is riddled with security problems. So many and so difficult to fix that Adobe pulled the product and recommend not installing it. Most browsers, operating systems and AVM products are configured to block it. It's roughly equivalent to fitting front and back doors with no locks to your home. They keep the weather out, but the first crook who tries the handle walks straight in.
Dave