I clearly made many points. Sourcing some of my points/supporting details from those threads doesn't make my points invalid, nor does it mean that arguing against claims others made in those threads (that I didn't make) is arguing against the points I made...
Regarding, what the feature is for, see several of my previous points and explanations...
Some examples of what I personally would use this feature for myself:
In more competitive games (ie: in tournaments), I'd use the reclaim brush some of the time when I would otherwise do other things. It would replace some of my attack move orders and manual reclaim orders, as well as some of my other time use. However, it would save me time on manual reclaiming that I could then use for other micro'ing, strategic decision-making, looking at what I've scouted, etc. It would also result in my overall reclaiming being better (ie: I'd use it on some groups of t1 wrecks surrounded by trees that I otherwise wouldn't get efficiently because I wouldn't want to spend the APM on manually reclaiming them. So I'd otherwise use an attack move order that would result in me getting the wrecks more slowly because it would get many of the trees before many of the wrecks).
In more casual games, I'd like to use it to be better able to be more chill/relaxed with reclaim clicking without sacrificing as much quality compared to doing more intense high-APM/high-effort manual reclaiming, among other things. For example, in generic 1.3k+ games on canis, if 1 air player tryhards with manually clicking numerous 38 mass rocks early game, and the opposing air player does not, that often makes a significant impact on the game, and whether or not to do that in the 1.5k+ range often comes down to whether a player wants to play in a chill/relaxed/lazy way or a stressed/intense/tryhard way.
@Sladow-Noob
Regarding this being a desirable feature for new players, see points 1-6. That outweighs the tiny cost of the very slight increase in complication.
Regarding you wanting players with more time to do things to be rewarded for their high APM, see point 8.
Your argument regarding engis autododging/etc is a slippery slope fallacy. See my OP and point 5.