So the thing is, I agree with the poster, it would appear that the general story arc of How I Met Your Mother bears a striking resemblance to Friends. Where I disagree with the poster and Reddit in general, is the implication. I do not thing this makes HIMYM good or bad. I feel like the three-camera sitcom format was perfect in the 80s or 90s and I am not surprised to see similar story arcs emerge. As someone who grew up with the ‘filmed before a live studio audience” shows of TGIF shows and a fan of even older 3-camera shows, I was pleasantly surprised to see the return of the format a few years ago. If the writers of the show are giving a nod their influences, then even better, imho.
That is all, Reddit STFU.