I joined this community 4 years ago, and I don't see more merchants and services accepting Bitcoin, both locally and on the Internet.
Don't take offense to this, but what have
you done to increase adoption? Have you spoken to local merchants you use about bitcoin? Have you emailed larger companies expressing your desire to pay in bitcoin? Have you sought out business which accept bitcoin and spent your money with them? I see lots of people lamenting that bitcoin adoption is not more widespread, but I see very few people doing anything about it. Merchants aren't going to start accepting bitcoin unless they know there is a demand for it.
there's a nice niche for these, but they are also not very reliable.
Curious as to why you think this? Perhaps you are using less reliable mixers? I have used ChipMixer extensively without ever having a single issue.