Just throwing out the word tankie is pretty much meaningless at this point. It might as well be “woke”. If you have specific issues explain that rather than just trying to shut down a conversation with a word. Some users might be a bit too sympathetic too China but I’ve typically seen them more come from a reasonable non US propaganda viewpoint and have been open to actual criticism about China. Some of it can seem like whataboutism but to be fair a lot of the complaints I see about China are shit the US does as well so it can be a fair point.