Surely the HN crowd, with its always so clever folks, has better ways of handling such primitive workflows.
Please share your tips to follow up on your own activity.
Personally, I think people put too much focus on comments. Many are trying to persuade others of a view (and hence are impervious to true discussion). Comments are useful to the extent they provide new information or links directing people to other similar content. I think the limitations on HN comments put the emphasis on the latter purpose and away from the former.
(To the author of HN Notify: if you're reading this, thank you!)
There's a neat RSS feed service that I sometimes use also, although my power just went out so I can't dig it up right now. Will try to report back.
For push, set up https://hnreplies.com/ or a similar site. Will only give you replies and not updated karma counts. (edit: and be aware of linking your email and hacker news username if relevant for you)
It provides me with a command-line utility for fetching all of the comments in a particular thread into a SQLite database, for example:
hacker-news-to-sqlite trees hacker-news.db 27897211
For threads that I'm actively involved in (probably no more than a few times a year) I will run this script about once an hour - then I can use "select * from items order by time desc" (usually in Datasette) to see the most recent comments.(The initial goal of the tool was to archive my own comments, which can be done with "hacker-news-to-sqlite user hacker-news.db your-username" - I run that on a cron)
https://github.com/etcet/HNES/
(There's a downside that it breaks the ‘more’ links on paginated comment pages.)
Weirdly it seems that third-party Android apps for HN haven't bothered with doing anything similar, checking for replies in the background and popping up notifications. That would be pretty much perfect, and isn't really too complicated.
To track replies to my own comments, already mentioned https://hnreplies.com/
For keeping up with replies to my own comments, I still just refresh the page, which is a little sad. :P
Seriously though, you get karma by posting stories, balancing what really interests you with what HN looks for in a good story. The more interesting stories you post, the more likely people are to engage with you in comments. Surprising news sometimes makes for a good story, but the most engagement comes from those that either provide an unusually clear illustration of a problem, or would have significant long-term implications if the technology or issue described were to become a norm.
As for keeping track, I just use the Threads link or look at my submissions manually. There is little correlation between how passionately I feel about something at the time of posting and how HN will value it.
Sometimes karma increases due to an old comment, and I'm not sure if someone replied.
https://hnrss.org/replies?id=xcambar
For more options see: https://hnrss.github.io/
I mostly use it when I share one of my own blog posts and there are many sprawling replies/conversations that I want to engage with
HN is beta testing a similar feature. I'd encourage them to add the new comment count as well if they haven't.
IMHO that's not a good thing. I bet you've got more important things to keep tabs on.