You're right. It may be that since you seem to be advocationg that WotC should not be making a 5th Edition, when many people (including me) seem to want it (for varying reasons), and you seem to be emphasizing support for 3E and 4E; people are percieving your motives as pro-3E/4E and anit-5E. Their perception is not entirely true, however your statements and your petition are anti-5E...and to many, that's a problem.
I however do share the belief with you that WotC can make money supporting older edtions. I think it's foolish not to. But for whatever reasons (truly known only to them), they haven't. However, with the release of the AD&D core reprints, the coming 3.5E core reprints, and hints at returning pdf's (or at least a form of ownable, dowloadable, electronic format for previous edition materials); they seem to be at least dipping their toes into it and trending in that direction. That's a very good thing IMO, but I'm expecting it will be series of very small steps toward what you and I would like from them. However, we may need to be prepared for it may be a painfully slow process; but at least they seem to be showing progress.